Moonbows over Kentucky.

The beauty and the beast of hydraulic mining is on full display at this California Historic State Park.

Even Henry David Thoreau found this glacial pothole irresistible.

A deteriorating 1990s Girl Scout camp in a beautiful lush park on Lake Ontario.

A popular place to pick up prehistoric coral fossils from the time when Michigan was an ocean.

Over 100 million years ago, beach-bound dinosaurs left permanent marks on San Antonio's landscape.

Foragers once flocked to this big beautiful bayou to hunt for pearls.

The mysterious 855-foot zigzagging stone wall has been baffling people for centuries.

This Big Sur waterfall drops 80 feet directly into the Pacific Ocean, and inspired the hillside house up top.

Surprisingly aquamarine waters fill deep lakes formed at the end of the last ice age.

World War II bunker still standing on the New Jersey beach.

These beautiful ruins deep in the Pennsylvania woods are thought to have been a ski lodge or a speakeasy, but no one really knows.

Once the "Eighth Wonder of the World," this iron railroad bridge was decimated by a tornado.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

A layered tribute to the work of mosaicist Isaiah Zagar.

Hikers can still stroll beneath the long conveyer of this abandoned mining facility hidden in a West Virginia river gorge.

One man's lifelong collection of 10,000 rare steins tells the story of beer drinking from 1350 to today.

A convincing little bit of ancient Egypt smack dab in Richmond, Virginia.

The ruins of this Thomas-Jefferson-designed mansion have been left to crumble since the Christmas Day they burnt down.

Heron, whitewater rapids, and urban industrialism all add to the beauty of this concrete nature walk.

One of the last active volcanoes on the Eastern seaboard.

A small Richmond island dotted with the remnants of hundreds of years of history.

This maze-like slot canyon is a unique gem within an already fascinating geological area.

This once-palatial plantation may have been the site where a draft of the Declaration of Independence was written.