Series of storm drains connected to a dark urban legend.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

A geological mystery on Camelback Mountain.

The site of a popular piano lounge owned by a former world champion boxer is now a place to rent a truck.

An open-air, roadside eatery celebrating a historic indigenous cuisine of complicated significance.

Come for the pizza, stay for a performance on the world's largest theater pipe organ.

Every Christmas, one Arizona city makes the most of its dry climate by creating an arid desert tannenbaum.

A historic hydroelectric power plant serves as the unusual backdrop for a public park.

A self-built castle made by a mysterious man.

The exit of the largest prisoner-of-war escape attempt on American soil during World War II.

A mysterious "wedding cake" castle in the middle of the urban desert.

The unusual burial monument of Arizona's first governor.

The historic “pink house on the hill” is an architectural gem that now serves as a center for water conservation.

The first marker along the famous boundary.

One of the oldest surviving bars in the United States, located at the site of the last skirmish of the American Revolution.

How this Pine Barrens hill got its name is uncertain, but on a good day the view from the fire tower is crystal clear.

This 25-foot-tall gorilla made his way from the Wildwood boardwalk to a Pine Barrens gas station and deli.

The ravine where Jesse James supposedly performed an impossible jump to evade capture.

The cliff and rock formations are made out of Sioux Quartzite.

A once-thriving hotel in the Swiss Alps couldn't compete with climate change.

These otherworldly limestone formations jut out from the Kansas prairie.

This small museum contains fossils from an era when Kansas was underwater.

Once an ancient sea, this landscape of rocky ravines is filled with the fossils of ancient marine life.

One of the Eight Wonders of Kansas and the first official National Natural Monument these stark formations look like nature's Stonehenge.