No one knows exactly how deep the world’s deepest geothermal hot spring is.

For the last eight decades, this curious shop has been ridding Atlanta of bad juju.

A glimpse into early 19th-century education.

This Colorado fire station has been in continuous operation for more than a century.

Take a dip in the world's largest mineral hot springs pool.

The 7,000-foot finish line of America’s first Olympic Trials marathon.

Open-air cremations in Colorado's self-proclaimed spiritual mecca.

Climb to the top of this spiritual tower, and you'll be rewarded with spectacular views.

For over a century, it has been a tradition to raise a flag at the top of this 450-foot sandstone pillar on the 4th of July.

Red sandstone structures dominate this landscape, which has been inhabited for some 5,000 years.

A planet-hunting astrograph built in the 1920s to seek out the so-called "Planet X" beyond Uranus.

This lake sits on an estimated 4 million tons of salt.

A short but powerful waterfall resides amid Colorado’s Great Sand Dunes.

Journey through various trails to discover a land before time along the Chazy Fossil Reef.

A gardener's enduring labor of love is spread throughout a small Vermont town.

A pair of black granite tails dive into a sea of grass in landlocked Vermont.

Scary metal statues adorn some of the signature buildings of Burlington, VT.

Driftwood dinosaurs lurk within trees covered in a rainbow array of avian abodes.

This 38-drawer structure claims the superlative title, but it isn't the world's only giant filing cabinet.

A giant toy jack made of numerous welded-together fire hydrants.

More than 350 million years ago, western New York was covered in a vast sea. Today, you can dig up the remains of the plants and animals that lived there.

The birthplace of America's favorite fruit-flavored mystery dessert.

An interesting look into 18th-century American history.

Niagara Falls holds a special place in Nikola Tesla's history, so they put a statue on it.