Before TV meteorologists, there were weather kiosks. This may be the last one in the United States.

Though it's no longer a functioning train depot, this castle-like structure is an important piece of Oklahoma history.

More than 7,000 gallons of water pour over these cascading red quartzite waterfalls every second.

A historic canal winds through a unique, swampy landscape.

The location where the American Revolution ended.

This unassuming stone is possibly the oldest Scottish memorial to the 13th-century knight.

In 1975, a forestry worker in Arizona claimed to have been abducted by a UFO.

A family of fiberglass giants.

This tidal island, a sacred site in early English Christianity, was the target of a notable Viking invasion.

Giant granite rocks standing end-to-end like a train of circus elephants.

Some of the oldest exposed rock formations in the United States.

The only fully-realized skyscraper built by the famed American architect, Frank Lloyd Wright.

A house built specifically to shelter the dead.

The final resting place of a man who claimed that he could tame even the mightiest of bears.

After retiring, Gary Pendergrass turned his yard into a wonderland of outsider art.

This former train station was once an important shipping depot for the regions farmers.

First crafted during the 19th century, the mill was fully restored in 1983.

This work of art was designed to represent the Tarpeian Way Quarry that once dominated the area.

Located in a remote part of a Louisiana wildlife refuge, this tree has been standing for more than 1,200 years.

This monastery set over a holy cave contains the oldest known painting of Saint Francis of Assisi.

The woman who helped save 15th-century France was born in this humble home.

This monument pays tribute to the city’s contribution to basketball history.

The site where the Spanish first landed in Mexico was once a thriving Mesoamerican city.

The second seat of Nye County, still mostly a ghost town, has become a magnet for those looking to live "away from it all."