Macabre astrological automaton clock dating to the late 1400s.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

The tunnel's elegant proportions keep you snug with no claustrophobia freak-out.

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

This presidential tomb was not dedicated until years after Harding's death due to personal controversy.

This moving cemetery sphere is a slowly rolling stone.

Featuring one of the most complete and original collections of Presidential memorabilia, this is the site of the last front porch presidential campaigns.

A library of poems cascade off the branches of this unsuspecting tree.

A tunnel of hardened lava along Maui’s famous Road to Hana.

A precariously balanced rock perches on the edge of a cliff created tens of thousands of years ago by glacial erosion.

East meets West in this Japanese-style garden featuring plants native to Maine’s Mount Desert Island.

These light, hollow rolls have been linked to Acadia National Park since the 1890s.

The first documented commercial gold find in the United States.

One person's lost luggage is another person's treasure.

It may look like no more than a full-scale model, but every part of this full Space Shuttle stack had a working role in aviation history.

Bananas are often left for the first monkey America ever recovered alive after being launched into space.

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

Possible relics of the ancient Roman city are hidden in this restaurant's façade.

A dilapidated dock tells the story of Titanic's missed arrival.

Try not to get slimed in Tribeca.

Imagine having a street run right through your home, or better yet, a historic bridge three stories high.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

148 feet long and in the middle of a verdant forest.