This 24-acre park offers a place for meditation in the midst of Sedona's iconic red rocks.

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

A spiritual vortex among the red rocks in Sedona.

A planet-hunting astrograph built in the 1920s to seek out the so-called "Planet X" beyond Uranus.

The wreckage of a deadly bomber plane crash can still be found near an Arizona peak.

The eroded core of an ancient volcano is now accessible by a short hike.

A mysterious spirit totem at the edge of Navajo lands.

A nature and cultural preserve named for its multitude of petroglyphs carved by the Northern Sinagua people.

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

Ancient pueblos built into the base of a natural canyon wall.

The artist James Turrell is repurposing an extinct volcano crater as an observatory to experience the cosmos.

This historic national park is covered in the stunning ruins of red rock pueblos.

Witnessing the might of this dessert-colored desert waterfall is a rare, powerful treat.

In a dry, neglected cemetery lies the unassuming grave of a soldier vilified in life but celebrated in death.

The real-life site of Ichabod Crane's infamous gourd attack.

This tiny church near Sleepy Hollow contains Henri Matisse's last work, a rose window, and nine windows by Marc Chagall.

The home of one of America's most wealthy industrialists is now a historic site that remembers a more decadent time in the country's history.

The origin of the Nixon tapes is rooted in technological incompetence as much as secrecy.

Lemon Grove, California is known for its giant lemon...and mummified bodies.

The oldest standing structure in downtown San Diego.

One man's quest for the ultimate road trip vehicle.

The world's largest outdoor organ is played weekly by one of just two civic organists in the U.S.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.