A natural dome made of volcanic glass in Inyo National Forest.

Once America’s most beautiful army base, this abandoned military fort on the coast of Monterey Bay has been left to the elements.

Scattered throughout London are ancient remnants of the city's former bounding wall.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

A tree grown from astronaut seeds which were exposed to cosmic rays.

Frank Lloyd Wright died a year before construction on his largest public project even began.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

From the sky, a kaleidoscope of color brightens the grey landscape of the San Francisco Bay.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

This naturally heated mountainous creek has created a group of neon blue pools of potentially deadly boiling water.

Chevron maintains one “Standard” brand station per state so it doesn’t lose the trademark.

The California capital city once stood 10 feet lower than it does today.

A hotel and restaurant serving as the mecca of kitsch.

Only hotel where you can legally launder money.

The interior of the Overlook Hotel in "The Shining" was based on this Yosemite original.

A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.

A shining, cold, black organ lies in San Francisco's financial district.