This 12-foot-tall T-rex is the largest K’Nex skeleton sculpture in the world.

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.

A propulsion engine testbed that paved the way for the Space Shuttle launch sits without recognition at this rocket center.

A Memphis park where you can walk the whole Mississippi River in one go.

Local legend says that someone is buried in the trunk.

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

A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.

A World War II evacuation tunnel turned into a history display of Croatian state and people.

Where the lovelorn find a home for their sentimental keepsakes.

Enormous pendulum helps keep Taiwan's tallest building from swaying.

Pilgrimage site for star-crossed lovers.

A museum dedicated to a secret military hospital hidden beneath a castle in Budapest.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

On a small Slovenian island, diners can mix and match a classic cake into dozens of sweet and savory flavor combinations.

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

The only museum with its curator—and her pets—buried inside.

100 year tradition of fist fights, marked by marble footsteps.

Go inside to really appreciate this 500-year-old technological masterpiece.

This statue of the great Argentinian car driver is located near a famous curve of the Monaco Grand Prix.

Granite outcropping that the state's tourism bureau doesn't promote because of its delicate ecosystem.

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

Inside houses a vast collection of military aircraft and missiles spanning the ages.