More than a century old, this trading post resides in the Navajo Nation.

One of the most extensive and well-preserved collections of dinosaur footprints in North America.

More than 25 fully functional scale replicas of famous lighthouses dot the shores of Lake Havasu.

This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

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

At the base of the Spring Mountains, a unique nursery packed with desert plants.

The world’s largest concentrated solar plant generates as many problems as megawatts.

The ghost town that ended up on Ebay.

The largest dune field in the Mojave offers a chance of hearing the 'singing sands.'

The abandoned train depot now doubles as a well-placed rest stop for those who take the road less traveled.

The American Home, Re-imagined.

Bug-devouring flora are the stars of a special wing of the glass conservatory.

The neighborhood of Eagle Rock is named after a gigantic boulder with a shadowy surprise.

An extraordinary final resting place full of oversized art, amazing statues, and dead celebrities.

Historic funicular railway, believed to be the shortest railroad in the world.

Opened as part of the New Deal, the training facility now features World War II-era structures and a pylon that once stood at the World Trade Center.

One of the largest trees of its kind in California.

Legend says one of the world's largest marine geysers is actually a whale that got wedged within the rocks.

Colorful sand dunes create a unique attraction in this part of Utah's red-rock country.

This tiny cluster of abandoned buildings looks like the future of the ghost town - today!

The city's oldest Chinese restaurant offers local history and seriously good food.

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

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.