The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

France's most famous cemetery, with some of its most curious tombs.

This high point in the Great Smoky Mountains is said to be home to the chief of all bears.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

See massive fossils that are over 200 million years old in northeastern Arizona.

Quite simply the largest tree in the world (by volume).

The second oldest continuously operating bar in Louisiana.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

There is no trying to fall in love with this Star Wars fountain, you just do or do not.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

Elevated freight railway turned wildly successful urban park.

Try not to get slimed in Tribeca.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

For 150 years one family has been producing the iconic hot sauce on a bayou island made of salt.

Hollywood's oldest hotel is the site of the first Academy Awards, the birthplace of Marilyn Monroe's career, and the home of Montgomery Clift's ghost.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

A sculpture made of 10 Cadillacs as a monument to the “Golden Age” of the American automobile.

Visitors can walk over the largest concentration of Columbian mammoths to have died from one event.

Taos Pueblo recipes, foraged ingredients, and outdoor ovens define the menu at this eatery.