One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

Craggy concrete faces are hidden in the walls of this artificial cave along the San Antonio River.

Tile mosaics and quotes from Pablo Picasso add an artistic flair to these bus stop benches.

Soldiers honored the beloved Pat with a special grave.

This museum showcases the history and contributions of the U.S. Army to the medical industry, both on the battlefield and off.

The 40-foot-tall votive candle is the largest of its kind.

A National Historic Landmark with a scenic clock tower and park filled with deer and peacocks, plus a military museum.

Three hundred years of preserved Spanish colonial history in San Antonio.

These boots are made for selfies.

A gorgeous garden oasis with winding paths, stone bridges, and a troubling history.

Run by members of the Tohono O'odham Nation, this community farm nurtures traditional desert cultivars.

Make a wish at what might be America's only Catholic shrine to a sinner.

A cabinet of curious mathematical models and old calculators.

This church on a Tohono O'Odham reservation has stood since 1797.

This family mausoleum is steeped in symbolism and looks more like a fantasy location than a grave.

The boulder is a landmark, public art, and an icon.

Overlooking Puget Sound sits a garden with a Buddhist prayer wheel and an elaborate labyrinth.

This monument remembers the first Japanese Americans forcibly relocated during World War II.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

The prototype for all Nazi concentration camps.

This Italian foot path winds through the mountains via 52 individual tunnels.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

Famously misunderstood wonder of the ancient world

Home to more than 13,000 pieces of war memorabilia and military equipment.