The ruins of a Florida miracle spring resort make it seem like a wonder that this was ever a health spa.

One of the last active volcanoes on the Eastern seaboard.

A former mental hospital founded in the 1930s by a eugenicist who advocated for the forced sterilization of patients.

This road winds through the steep coastal cliffside offering spectacular views for those who brave the drive.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

Before the electric telegraph, a chain of stone towers carried messages across France.

The fading, forgotten remains of a once bright and booming factory.

Semi-recognized center of the world, with many oddities.

This long, dark tunnel is open to hikers, but those without lights are known to get confused even on the straight path.

Raging waters have created a strange geological site that looks like something off of a progressive rock album cover.

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

Strange rock formations tower above the river that snakes through this enchanting Icelandic canyon.

Rare recess caves fill this unbelievably beautiful Ohio park.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

Three hundred illuminated pillars form an “artificial forest” in Medellín.

This isolated island is often capped by its own fluffy cloud.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

The only diamond mine in the world where you can keep what you find.

The scant remains of an expansive indigenous civilization can be seen at this Arkansas state park.

Even Henry David Thoreau found this glacial pothole irresistible.

One of America's first planned communities is preserved in a state park.

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

At this deceptively beautiful beach, nothing is what it seems.

This nomadic monster has divided opinions as it prowls across Canada.