This dramatic rail curve was once the target of a failed Nazi attack.

Chase waterfalls, hiking trails and more.

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

Tucked into Pittsburgh’s North Side, the Mattress Factory is a labyrinth of permanent, room-sized installations where artists transform entire spaces into mind-bending, immersive worlds.

Despite being stolen multiple times, this civic electrician's street corner Snoopy won't be stopped.

This riverside restaurant delivers elegant dining in a historic 1901 train depot. 

The last funhouse of its kind, where guests enter through the mouth of an 80-year-old blue whale.

When a supermarket opened up shop within a medieval building it became protected by UNESCO on a technicality.

This giant temperature attraction created some giant electric bills.

Climb around the high waterfalls on series of iron ladders and bridges within the wildest gorge in the Slovak Paradise.

This spaceship sculpture in the middle of the Slovakian capital looks like it just crash-landed.

Dedicated to a synagogue that was destroyed after having survived World War II.

Too much gossip or just missing curfew could land you in here for a couple of days.

A collection of intricate sculptures so small they have to be seen through a microscope.

This hidden art nouveau gem was designed by an architect in search of a national style.

Uh, pardon me, ma'am, but I couldn't help noticing that there's a Columbo statue in the middle of Budapest.

An 18th century fountain and two columns are all that remains of Rome's forgotten river harbor.

The skeletal frame of a decommissioned gas-pumping station offers breathtaking views of greater Berlin.

This conical hill was built as a testing ground for an engineer known as the Glider King.

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

Las Vegas's very own 40-foot-tall fire-spewing praying mantis.

This historic national park is covered in the stunning ruins of red rock pueblos.

A sharp bend in a dramatic river canyon cut through red rocks.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."