Synagogue built from the stones of Solomon's temple contains the golem of Prague.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

This Czech military museum is home to pink tank that was once a symbol of art and political rebellion.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

Macabre astrological automaton clock dating to the late 1400s.

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

60 feet of towering steel balances gracefully.

A multi-storied adobe complex has been inhabited for more than a thousand years.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

Final resting place of Geronimo, Quanah Parker, and the first atomic gun ever fired.

Just like the real 36th president of the United States, animatronic LBJ amuses visitors with jokes and stories.

Controversially claiming the title of world's biggest bass drum, UT's Big Bertha was once made radioactive by the Manhattan Project.

Locals dubbed it the "Owl Building" because of its bird-like appearance.

An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

The romance of early commercial flight still fills this Art Deco destination.

At 207 feet, one of the world's longest continuous escalators.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.