This innocuous New Mexico storefront was once the secret jump-off spot for Manhattan Project scientists.

The oldest continuously occupied public building in the United States.

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

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

The laboratory where the Soviet secret police invented exotic poisons used to kill dissidents in hideous and (mostly) untraceable ways.

Dine amidst exotic plants at this former royal greenhouse.

The world's brightest bioluminescent bay.

Legend tells how a Spanish soldier disappeared from this isolated sentry box without a trace.

Elephant seals and sea lions have turned the abandoned buildings on this island into their endangered love shack.

Go surfing on this urban wave, "hacked" by local surfers.

Designed as a reminder of one of the darkest moments in Austrian history.

In the middle of a Vienna square, Roman ruins dating back some 2,000 years are on display.

Legends surround an ancient tree trunk riddled with nails for good luck.

This preserved village shows the modest lifestyles of the area's 19th-century Chinese gold miners.

Amazing meticulous gardens of personal wood carvings, Hydrangea, Canna, and many other flowers.

The arch that celebrated the completion of the Lincoln and Victory highways.

Dine like an American revolutionary at Colonial Williamsburg.

A multiversal transit station located right below a highway interchange.

The most beautiful Taco Bell in the world even has surfboard parking.

This restaurant features Native American foods from across the country.

One of the most elaborate displays of Jellyfish is on display at the aquarium.

This subtle Berkeley paving stone actually marks off a lawless tube of air that extends into space.

In a small Japanese garden off a busy Denver street, a memorial to a brave, principled politician.

This restaurant is proud to be built atop a burial ground.