Places jackofalltrails Wants to Go

Marking the spot where a conquistador gave up his search for the fabled Seven Cities of Gold.

Its dark depths conceal millions of rare, delicate crystal formations.

The cavern’s main chamber is so vast that the Statue of Liberty could reportedly fit inside it.

Every autumn, this hillside is ablaze with red summer cypress.

Dating back roughly 240 million years to the Triassic period, it was left by a large, 12-foot-long crocodile ancestor called a Chirotherium or "hand-beast".

A desert journey through atomic history.

Secluded springs in the Rio Grande Gorge offer hot bathing beside the haunted ruins of a stagecoach stop.

Bubbling up from deep underground is the warm crystal clear water that fills the Warm Springs Pools, America's oldest spa.

This Pennsylvania cave holds evidence of the oldest known inhabitants of North America.

Climb the tallest remaining fire lookout tower in West Virginia for unparalleled views—if you dare.

This now-abandoned part of the original transcontinental railroad route provides a surreal driving and historical experience.

A large wave-cut arch in limestone, carved by Pleistocene Lake Bonneville, is perched atop a ridge.

This pristine World War II airfield gives a comprehensive look at atomic development and aviation history.

The only place in the Grand Canyon where an automobile can be driven to the Colorado River

The junction point of Arizona, Nevada, and Utah, resurveyed and remonumented in 2016

The only freestanding table rock formation east of the Mississippi.

The world's longest known cave system.

The last such cabin in Arizona is a rare remnant of a bygone era of medical treatment.

A Norman-style castle, 1850s Irish cottage, and cultural center in the heart of Phoenix.

The fourth-oldest baseball stadium in the United States is in a league of its own.

A museum dedicated to the Georgia Peach, one of the greatest baseball players of all time.

Naked scientists race around the pole in the frigid cold to try to join Antarctica's exclusive 300 Club.

Santa Monica is one of the world's longest, most beautiful, and least developed beaches: just white sand for miles, a single beach shack, and the concrete shell of an abandoned resort that never got past its foundations.

A mapping error in the 19th century made loggers think this section of the forest was underwater.