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        赵凌波

        Machu Picchu Ancient Structures Wonder of the World
        Machu Picchu, located high in the Andes, was voted one of the
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        Since at least the building of G?bekli Tepe 11,000 years ago, humans everywhere have built structures of size and grandeur: from the Cahokia Mounds to Chichen Itza, from Great Zimbabwe to?Angkor Wat, from St. Basil's Cathedral to Petra to the Sydney Opera House. These structures and monuments stand?testament?to human ingenuity and culture.?Learn about the history of major structures, endangered places, famous buildings, bridges and landmarks, including the Seven Wonders and more.

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        The United States is a rather young country, but that hasn't hampered the construction of its many remarkable monuments. From the completion of major projects like the Gateway Arch in St. Louis (the world's tallest manmade monument) and?the Empire State Building, to the many famous memorials like the Lincoln Memorial in D.C., the United States has plenty to wonder at. Learn more about some of the highlights, and about the risks some of these sites face.?

        Slideshow: Landmarks of Washington, D.C.

        Slideshow: Statues of Washington, D.C.

        Longest U.S. Suspension Bridges

        World Trade Center History

        Tallest Buildings in the United States

        America's Most Endangered Places 2015

        America's Most Endangered Places 2014

        America's Favorite Structures

        U.S. Historical Monuments

        The Golden Gate Bridge

        赵凌波The Pentagon

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        In addition to our?other info, be sure to check out these links to learn?more about the history of architecture, and to see what other relevant questions our editors have answered.?

        Encyclopedia: Architecture

        Notable Architects

        What is the Statue of Zeus at Olympia?

        Highest Airport in the World

        The Great Wall: visible from space?

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        Brewer's: World