An artsy hidden staircase leads to breathtaking views of San Francisco.

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

This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

An homage to everyone's favorite prehistoric cartoon family.

Rippling sand dunes frozen in the Arizona rock.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

Dramatic river bend surrounds a natural red-rocked pedestal.

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

This spectacular track has run continuously since 1882.

This naturally-sourced hot spring is now home to a clothing-optional resort.

The highest bridge in America was built for an almost unnervingly small amount of money.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.