A B&B on a Victorian lighthouse station in San Francisco Bay.

The largest drain hole in the world.

'Cause the fence start shaking, the earth was quaking.

The haunting ruins of Jack London's dream house.

Site of a former hidden treehouse in New Orleans.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

A trash dump made beautiful by nature's power.

A hand-built folk art installation covered with messages of God's love.

The ghostly remains of an accidental sea.

The old Niles Canyon Aqueduct in the San Francisco Bay Area is a bemusing and secret trail through nature for wayward travelers.

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

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

Rippling sand dunes frozen in the Arizona rock.

A lovers' beach, tucked below the surface of the island, provides a safe haven for romance.

A huge musical instrument played by the ocean.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.