This museum offers an actual time machine back through Colorado's past.

A technicolor place of worship for Elevationists.

It may take some time to locate, but it's sure to warm even a heart of stone.

This hidden sculpture garden full of Wild West art is one of San Antonio's best-kept secrets.

The flower-shaped temple in Virginia aims to transcend the boundaries of the world’s religions.

Every president in history is immortalized in bronze in downtown Rapid City.

South Dakota's oldest operating brewery is housed inside a historic firehouse.

The highest point in South Dakota contains the ashes of Valentine McGillycuudy, the "Holy White Man."

Around half a million years ago, these magnificent columnar basalt cliffs were formed from cooling lava.

This Moab institution functions as both a rock store and a small natural history museum.

It's safe—and permitted—to walk across these twin natural sandstone arches.

The fifth-longest natural arch in the world, and the longest outside China.

At this gas station in the middle of the desert, a convenience store has been carved directly into the rock.

This outsider art paradise is filled with dinosaur sculptures crafted from recycled machinery.

A replica that won't float away.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

The unusual patterns in this rock formation result from two distinct modes of weathering.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

A tunnel with windows, so you don't miss out on the impressive views.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

Hidden inside this Arizona fast food franchise is an in-depth exhibit on the famed WWII counterintelligence program.

Dramatic river bend surrounds a natural red-rocked pedestal.

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