Places grantavery Wants to Go

A spiral staircase twists to the top of this unusual Czech lookout tower.

This former quarry is now a picturesque gorge that hides a sunken lake.

Bohemian paradise covered in majestic forests.

This doorless 20th-century elevator doesn't stop or slow down.

Europe's largest natural bridge has a 19th century royal chateau built into its side.

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

A Jenga-style cylindrical tower of books that appears to go on forever.

Macabre astrological automaton clock dating to the late 1400s.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

The walls of the iconic dome are hollow and have a secret stairway.

During the Industrial Revolution this “Temple of Invention” was full of intricate miniature machines and gadgets.

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

Enormous piles of historically significant stones, dumped by Congress in a forest, and abandoned for 60 years.

A museum cafe showcases Native American dishes and indigenous ingredients from across the Western Hemisphere.

The grand marble structure next to the White House is Andrew Carnegie's temple to Pan-American diplomacy.

The preamble to the U.S. Constitution written entirely from vanity license plates hangs in the Smithsonian museum.

Part of a WWII submarine is lurking outside the Washington Navy Yard parking lot.

This nine-story building is the oldest standing skyscraper in D.C.

Built by prisoners of war, the largest small-scale model ever built includes eight miles of tiny streams that now sit abandoned.

There’s a special club house at the top for the bell ringers.

Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

These recently uncovered walls are all that's left of Washington, D.C's first defense contractor.

Where the U.S. government kept its actual treasure, before Fort Knox.

Government testing at the asylum briefly explored using marijuana as a "truth serum" on Nazi prisoners of war.