The 7,000-foot finish line of America’s first Olympic Trials marathon.

Preserved "bog person" that is over 2,000 years old.

The oldest amusement park in the world has been providing a nice spot to have some fun since the 1500s.

The world's largest maze is a nature park with nearly 200 decision points.

A perfectly circular stronghold constructed in the 10th century is now a nucleus of Viking culture housing a museum, village, and reenactment of an epic Viking battle.

Iron Age "bog person" preserved for over 2,300 years.

Museum on earth sciences featuring a recreation of a famous curiosity cabinet.

This Danish rock field is actually a sprawling ancient cemetery holding the bodies of 700 Vikings.

Old Danish castle immortalized in Shakespeare's Hamlet.

Vortex-shaped aquarium hosts Europe's largest school of piranhas and other ocean creatures.

Pre-Nazi swastikas adorn the sculpted pachyderms flanking this brewhouse portal.

A small medical museum with a recreated doctor's office.

Deep vertical fissures like miniature slot canyons cut across the cemented volcanic rock of Black Point above Mono Lake.

A short but powerful waterfall resides amid Colorado’s Great Sand Dunes.

These unique toilets feature transparent glass covered in PDLC film.

Catch a ride through the Pennsylvania countryside on this historic narrow-gauge railroad.

A shoreline exhibit describing the disastrous first attempt by the French to colonize North America.

The largest model carrot in the world.

A 1920s home transformed into an immersive art experience, where every room is a portal to another realm.

Known as one of America's most beautiful public restrooms.

When construction began on this hotel, developers were surprised to find the ruins of an ancient civilization.

An unexpected sinkhole in a desert flat within Gold Butte National Monument.

Dolphins, ancient clams and hundreds of waterfalls make this one of the world's top tourist destinations.

Tubing through a cave lit with glowworms is a magical underground experience.