"All Mountains - All The Time."

This enigmatic building features numerous architectural styles.

Community owned and operated, this property is home to a diverse set of nudists.

The largest source of fossilized insects anywhere.

France's most famous cemetery, with some of its most curious tombs.

A kaleidoscopic warehouse-maze of handmade neon signs.

A curious collection of miniatures in a quiet corner of the Chicago Children's Museum.

This surprising gem is a world-class archeological museum hidden at the University of Chicago.

A short interpretive trail about one of the first human cultures in North America.

The former home of the army detachment that captured Geronimo.

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

An out of this world experience.

Red sandstone structures dominate this landscape, which has been inhabited for some 5,000 years.

A cabinet of curious mathematical models and old calculators.

A small canyon with petroglyphs and a seasonal waterfall, only a short hike from the remnants of old Route 66.

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.

A spiritual vortex among the red rocks in Sedona.

This striking public art installation is suspended above a public park, designed to gently move in the breeze.

A reproduction of earth's many biomes.

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

Most-visited and most-photographed slot canyon in the American Southwest.

Rippling sand dunes frozen in the Arizona rock.

Nature has shaped this drainage tunnel into the digestive tract of a mighty beast.