Stay overnight in the world's most sleekly designed rabbit hole, free of charge.

The history and future of cannabis.

A South African bar inside a hollowed out 6,000-year-old Baobab.

Deliciousness abounds at a Guatemalan restaurant masquerading as a pizzeria.

In her ancestral home, one chef preserves ancient Filipino recipes and serves up traditional, home-cooked food to history-loving foodies.

This restaurant features Native American foods from across the country.

Found: Garden of Eden in Miami-Dade County, Florida.

Founded by members of the Tohono O’odham Nation, this one-room joint's James Beard–winning fry bread is light as a cloud.

A basement pool hall is the front for some of the best Dominican food in New York City.

This restaurant's specialty is "a major enigma for food historians."

An idyllic mineral hot springs facility with a more-than checkered past.

The hallucinogenic center of the ancient world.

One of almost 200 confirmed impact craters in the entire world, untouched for tens of millions of years.

The longest navigable underground river in the United States is home to countless blind and albino animals.

Hidden in Central Park's Ramble is a troublesome cave buried just beneath the surface.

At this small shop off a dirt road in the forest, the specialty is eel the owner caught and smoked himself.

A regular looking rock with an unbelievable history.

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

The eccentric mansion of one the most popular horror authors of modern times.

An Aztec temple, the largest man-made pyramid in the world, sits buried in earth with a Spanish church set on top.

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.

More gold than anywhere else, ever.

A lovers' beach, tucked below the surface of the island, provides a safe haven for romance.

A mysterious shape catches the eye in this 16th-century painting.