They call this long foot bridge a swinging bridge, but really it's the bouncing you have to watch out for.

A bizarre roadside attraction and the first instance of miniature golf in the world.

The Cadillac Ranch for monster truck aficionados.

This shifting North Carolina sand dune is an odd little desert surrounded by oceanic forest life.

The U.S. Supreme Court's secret Cold War relocation facility in the mountains of North Carolina.

The only known Futuro house in North Carolina sits along a stretch of desolate highway on the Outer Banks.  .

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

A whimsical bridge adorned with decorative dragons.

This one-time health resort was used by aristocrats around the world.

Brussels' favorite peeing boy has a sister.

A little sculpture with a large wardrobe.

Climb inside an iron crystal magnified 165 billion times its normal size.

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

This Nazi ruin was the site where Hitler was almost blown up by a suitcase bomb.

Real bones which are said to have belonged to a Polish dragon.

An underground city of salt.

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

A surreal statue honoring Prague's favorite literary son.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

Buried five stories underground, this Soviet bunker is packed with gas masks and Cold War paraphernalia.

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.