Two towns are linked by an engineering marvel masquerading as a boring suspension bridge.

Giant topiary dog once played a role in a terrorist bomb plot.

Numberless clock creates a meal of time for the dreaded, insectile Chronophage.

A remarkable medieval structure born from a 14th-century disaster.

Where the lovelorn find a home for their sentimental keepsakes.

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

Originally planted by the ancient Carthaginians, this sprawling palm grove is one of the largest in the world.

A slice of central Asia in the middle of Berlin.

A fascinating insight into daily life in the Eastern Bloc.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

Dramatic river bend surrounds a natural red-rocked pedestal.

Most-visited and most-photographed slot canyon in the American Southwest.

A self-built castle made by a mysterious man.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

A spiritual vortex among the red rocks in Sedona.

An urban laboratory.

This southwest-styled home in Santa Fe claims to be the oldest house in America thanks to an ancient bit of foundation.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

A sprawling collection of over 106,000 toys from around the world.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

Theater has had many different incarnations but has survived the ravages of time.

This museum celebrating the almighty dollar lets visitors literally stand in the shadow of a million bucks.