This huge dam across the Colorado River caused an armed standoff between two U.S. states.

The world's only teal arches exist in a city that cares more about its aesthetic than an Instagram influencer.

An urban laboratory.

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

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

A sharp bend in a dramatic river canyon cut through red rocks.

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

Rippling sand dunes frozen in the Arizona rock.

Fascinating military history, awe-inspiring wildlife encounters, and endless outdoor adventures draw people to this sprawling park.

The story of a Floridian city as told through an obscure sport for retirees.

This liminal destination combines creaky carnival rides, a classic car museum, and luck-of-the-draw flea market finds surrounded by dust and drive-in movie screens.

A self-explanatory attraction allows fans to respectfully remember and honor a comedy legend.

The sign that drew attention to a young boy's cucumber stand is now the name of his fruit superstore.

America's only city hall with minarets took architectural cues from Ali Baba and the Forty Thieves.

This abandoned NASA launch site is now a memorial to a trio of astronauts who were killed there.

A building so large that it has its own weather.

When you can't get to the Pacific, just go to Florida.

Town of spiritualists and mediums in Florida.

A mysterious castle built as a monument to lost love.

Rumors and legends of secret Nazi activities surround this eerily remote island mansion.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

This wooden hotel is a temple to German sustainability and forest conservation.

This statue of the great Argentinian car driver is located near a famous curve of the Monaco Grand Prix.

The big toe of this towering monument to a Croatian national hero is worn from years of superstitious rubbing.