The Pentagon is the headquarters of the Department of Defense and is one of the world's largest office buildings. Tours of the Pentagon are available to schools, educational organizations and other select groups by reservation only.

The Baltimore & Ohio Railroad Museum is dedicated to the preservation and interpretation of American railroading through the history and legacy of the Baltimore and Ohio Railroad, the Chesapeake and Ohio Railway, the Western Maryland Railway, and the regional railroads of the mid-Atlantic.

In the 1930's, after years of making charcoal to fuel the iron furnace, mountain farming, and harvesting of trees for timber, land was purchased to be transformed into a productive recreation area; helping to put people back to work during the great depression. Beginning in 1935, the Catoctin Recreational Demonstration Area was under construction by both the Works Progress Administration and the Civilian Conservation Corps. Originally planned to provide recreational camps for federal employees, ...

Glen Echo began in 1891 as a National Chautauqua Assembly "to promote liberal and practical education, especially among the masses of the people; to teach the sciences, arts, languages, and literature; to prepare its patrons for their several pursuits and professions in life; and to fit them for the duties which devolve upon them as members of society." By 1900, Glen Echo was on its way to becoming a premier amusement park, and it served the Washington area as such until 1968. Today the park h...

Clara Barton National Historic Site commemorates the life of Clara Barton, founder of the American Red Cross. The home served as the headquarters and warehouse for the organization. From this house, Miss Barton organized American Red Cross relief efforts for victims of natural disasters and war.

Housed in a 1849 train station, the museum features a permanent exhibition that addresses Baltimore during the Civil War and the part that the President Street Station played in this era, Maryland's railroad history and the building's role in the transportation of slaves escaping to the North.

Tour the Evergreen House and the Homewood House Museum featuring exhibits detailing life of early 19th century Baltimore.

The story of Thomas Stone is not just the story of man who signed the Declaration of Independence. It is about a peace loving man, who only after realizing he had no further options for peace, pledged his life, fortune, and sacred honor toward the vision of an independent America. It is about a devoted family man who took in six other family members upon the death of his father, and when his wife became gravely ill, put his national aspirations on hold to spend more time with her and their child...

Harmony Hall is in the Broad Creek Historic District, the first historic district formed under Prince George's County preservation law. The house is an 18th century Georgian country house that architecturally ranks as one of the great early plantation houses and an outstanding early colonial house of Maryland. The front of the house faces the Potomac River and remains much as it appeared in 1766, the estimated time of construction.

Greenbelt Park is a retreat from the pressures of city life and a refuge for native plants and animals just twelve miles from Washington, D.C. Long before colonial settlers appeared here, trees and flowers covered these rolling hills and wildlife roamed the woodlands. Algonquin Indians hunted this land in competition with other smaller tribes. A balance existed between the land and its plants, animals, and native people. Then the colonists arrived. Trees fell and forests gave way to farmland. Wi...

The National Aquarium measures 115,000 square feet and holds more than one million gallons of water. It uses sophisticated theme exhibits, state-of-the-art technology, and exciting architecture to re-create underwater environments for its visitors. More than 10,500 specimens and 560 species are in the collection. These include animals currently on exhibit and those that have already arrived in preparation for the opening of the Australian exhibit in 2005.

Hampton offers an exceptional opportunity to learn about an important part of American history, our aspirations, our values, and the moral choices we have struggled with through the years. The park preserves a vast estate from the 1700s. Its centerpiece is an elegantly furnished Georgian mansion set amid formal gardens and shade trees. When it was finished in 1790, Hampton was the largest house in the United States. It is the story of a seven generation family business, early American industry a...

The C&O Canal follows the route of the Potomac River for 184.5 miles from Washington, D.C. to Cumberland, MD. The canal operated from 1828-1924 as a transportation route, primarily hauling coal from western Maryland to the port of Georgetown in Washington, D.C. Hundreds of original structures, including locks, lockhouses, and aqueducts, serve as reminders of the canal's role as a transportation system during the Canal Era. In addition, the canal's towpath provides a nearly level, continuous tr...

Known as the "Battle That Saved Washington", the battle of Monocacy on July 9, 1864 between 18,000 Confederate forces under General Jubal Early, and 5,800 Union forces under General Lew Wallace, marked the last campaign of the Confederacy to carry the war into the north. One of the objectives of this campaign was to capture Washington, D.C. Although this battle was a military victory for the Confederates, it was also a defeat. Time spent for battle cost the Confederates a day's delay in marching...

Picturesque Fort Washington sits on high ground overlooking the Potomac River and offers a grand view of Washington and the Virginia shoreline. Today, only one silent gun stands behind the masonry wall-the last armament of the powerful fort that once guarded the water approach to our Nation's Capital. The old fort is one of the few U.S. seacoast fortifications still in its original form. When ocean-going warships had wood sides and carried smoothbore cannons, no enemy would attempt to ascend the...

The concept of the national park is an American contribution to world civilization, and it remains a defining characteristic of our country. From the rocky shore of Maine's Acadia to the barren crater and lush rain forest of Hawaii's Haleakala, America's national beauty is celebrated and preserved in its national parks. This book retells the history of each park, describes its most important features and wildlife, and reproduces its gorgeous scenery in full-color photographs that will enthrall armchair travelers and entice others to lace up their hiking boots and reach for their sporting gear. Organized by region of the country, it includes well-known parks like the Grand Canyon, Yellowstone, and Glacier as well as lesser-known destinations like Shenandoah, Biscayne, and Kenai Fjords.

Now in its fourth edition, the National Geographic Field Guide to the Birds of North America is the ultimate birder’s field guide. Sturdy, portable, and easy-to-use, it features the most complete information available on every bird species known to North America. This revised edition features 250 completely updated range maps, new plumage and species classification information, specially commissioned full-color illustrations, and a superb new index that allows birders in the field to quickly identify a species.

The National Geographic Field Guide to the Birds of North America, Fourth Edition will continue to be a bestseller among the fastest-growing sector in the U.S. travel market—the nearly 25 million people who travel each year specifically to observe wild birds.

Stand amid soaring Douglas fir in the great hall of Glacier Park Lodge or sit in the setting sun and gaze into the Grand Canyon at El Tovar. This beautiful gift book will transport you to the majestic lodges of our national parks to relive the glory of past vacations or plan adventures anew. This book and the PBS television series of the same title (to air in spring 2002) take armchair travelers into these architectural wonders and explore the surrounding natural beauty of our national parks. Lodges, wildlife, and stunning vistas are showcased in 175 full-color and black-and-white photographs, along with historical documents from the PBS series. In his introduction, Richard Moe, president of the National Trust for Historic Preservation, offers a call to preserve this national heritage, and a portion of the proceeds from the sale of this book go toward the rehabilitation of these magnificent buildings.

Educational Travel on a Shoestring shows parents how they can help their children learn–and have a blast–while traveling. From researching destinations to sharing activities that both teach and entertain, this priceless guide offers practical information for parents who want to have more fun with their kids, build closer family ties, and enjoy richer educational experiences–all without spending a fortune.

What makes a trip to a national park so wonderful? For starters, America's national park system is more diverse than any park system in the world. You can stroll the seashore at Olympic National Park in Washington or Cape Cod National Seashore in Massachusetts, climb craggy mountains in Grand Teton National Park in Wyoming, or go underground into the world's largest cave system at Mammoth Cave National Park in Kentucky. You can marvel at the largest canyon on Earth (Grand Canyon National Park), hike among the planet's largest collection or rock arches (Arches National Park), explore the lowest and hottest place in the Western Hemisphere (Death Valley National Park), or wander a realm of forests and misty mountains (Great Smoky Mountains National Park).

And these are just a few of your park options.

America's National Parks For Dummies gives you guidance to decide which park is for you, when to go, and what to see when you reach your destination. This guide will help you plan the best trip imaginable, whether you are

• An inexperienced traveler looking for guidance in determining whether to take a trip to a national park and how to plan for it
• An experienced traveler who has yet to explore the national park system and wants expert advice when you finally get a chance to enjoy one
• Any traveler who doesn't like big, thick travel guides that list every single hotel, restaurant, or attraction, but instead looks for a book that focuses on the places that will provide the best or most unique park experience

America's National Parks For Dummies is user-friendly and organized in a logical fashion. Each park is broken down in a chapter that delves into the nitty-gritty of trip planning and highlights, including tips for

• Planning your trip by touching on the diversity of the park system, explaining some of your vacation options, and telling you when parks are the most (and least) crowded
• Ironing out the details by describing how you get to the parks and how to find your way around after you arrive
• Exploring America's national parks by giving you the lowdown on 15 of the best parks, detailing things like each park's wild kingdom, the best spots for memorable photographs, and a few safety issues

The pages of this book resemble a great long-distance hike – you never know what's around the next bend in the trail. So throw on a backpack, take a swig of water, and get ready to explore the national parks!

For tourists, family campers, and serious lovers of the outdoors, here is a big, beautiful, color-illustrated book that describes more than 50 national parks, sites, and seashores that stretch from Cape Hatteras on the Atlantic coast to the Grand Canyon in Arizona, Yosemite in California, Haleakala in Hawaii, and Glacier Bay in Alaska. More than 400 breathtaking photographs capture the beauty and atmosphere of each site, and 54 color maps show each park's location and major features. Visitor information panels give important details on access points, accommodations, and recreational activities such as hiking, rafting, birdwatching, and fishing. Here is a wonderful volume that will inspire plans for trips and evoke marvelous memories of past experiences in America's great outdoors.

From stunning mountain ranges to arid expanses of desert, America has been blessed with an incredibly diverse land -- and the vision to protect it for our and future generations to enjoy. These lands are ours to view, wander, learn from, and revel in. America's National Parks captures all that is great about all fifty-six parks in the national park system. It also gives interesting, easy-to-understand background on the geological and ecological forces that continue to make each national park so worthy of protection.

Nature lovers will be captivated by gorgeous photos of landforms, flora, and fauna. Families will appreciate the information that is sure to enhance vacations at the parks. And visitors to any of the country's national parks will forever treasure this book as a memento of past visits and an inspiration for future ones.

Unlike any other book published on national parks, America's National Parks is a must-have for anyone who relishes America's natural wonders and wants to learn more about the powerful forces that created them.

If a picture's worth 1,000 words, this book--with its hundreds of breathtaking photos of America's National Parks--is a well-stocked bookstore. Accompanied by the words of poet laureate Mark Strand, These Rare Lands is a perfect coffee-table book for anyone who has enjoyed the wonders of nature's wildest places. From a storm over Sequoia National Park in California to the otherworldly stalactites and stalagmites of New Mexico's Carlsbad Caverns and an Atlantic sunset in Maine's Acadia, this is a book that draws you back again and again. Photographer Stan Jorstad's obvious love of nature comes through in the thoughtful approach he takes to his life's work, contained in the pages of These Rare Lands.