This vast and otherworldly landscape is one of the largest dune complexes in North America.

This memorial pyramid marker honors one of the United States Government's first official camel riders.

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

This huge dam across the Colorado River caused an armed standoff between two U.S. states.

Florida might be at its most surreal in this museum devoted to the famed Spanish artist.

A luxuriant botanical garden below sea level.

The first custom-designed building to showcase the works of Dale Chihuly is a wonderland of glass and light.

This ancient sinkhole-turned-healing-pool is a treasure trove of archeological discoveries and may even be the Fountain of Youth.

A circus legend leaves an unexpected endowment.