The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

Couple's personal collection of pinball machines turned public pinball museum.

A reproduction of earth's many biomes.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

Seattle's own bad art museum located inside Cafe Racer.

The magic's in the hole!

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

This historic "City of the Dead" lies prominently in the center of New Orleans' famous Garden District.

Eighty million natural history specimens call this gargantuan museum home.

This knobby, drooping New Orleans oak is a favorite place both for climbing and for meeting giraffes.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

Florida might be at its most surreal in this museum devoted to the famed Spanish artist.

One part local history, 99 parts gruesome haunted house.

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

Museum preserving torture methods from the past.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

A beautiful geyser under environmental threat.