A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

This surreal memorial/cemetery is a necropolis of crumbling stonework and puzzle-shaped headstones.

The place where World War I began.

This museum preserves the hand-dug tunnel that kept Sarajevo afloat during the Serbian siege.

Bridge that died in war and was resurected.

Yugoslavia's biggest underground airport lies in ruins.

Part modern art project, part traditional chapel, this see-through church is only substantial from the right angle.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

An annual extravaganza of Broadway theater memorabilia.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

Eighteen miniature death-scene dioramas.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

Narrowest house in Boston.

This corn maze so big you may want to pack a lunch, and possibly a flaregun.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

A museum dedicated to the strange and extravagant costumes and memorabilia of the mummers, a tradition older than Philadelphia itself.

A bit of retro transportation flair preserved in the world's largest department store.

Native American burial mounds? Giant gopher dens? No one knows what created the Mima Mounds.

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

This small section of the Sleepy Hollow Cemetery is rotten with famous authors' graves.

The site of a tragic massacre that spawned a multimedia franchise.

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.