Windswept and remote, this island was once the home of a rare mammoth and today is home to a rare tree.

This futuristic airport terminal was abandoned for decades before reopening as a hotel—with a vintage plane of its own parked out back.

A small granite block at this monument's base is the only part of Lincoln's Tomb outside of Illinois.

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.

Dozens upon dozens of boulders engraved with scripture tell the story of one man's troubled life.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

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

One of many reminders of Tesla's scientific contributions overlooks the falls which inspired him.

A forsaken wonder in the middle of the East Side neighborhood.

Ruins of a once-prized railroad station in New York.

A monument to a Polish general who fought the American Revolution and became the "Father of the American Cavalry."

This park contains a number of standing stones meant to heal and inspire.

A pink and gray pair of pachyderms advertise a fireworks shop.

A statue honoring 44 continuous years of greeting passing ships.

This woodland architectural installation acts as a camera obscura for the heavens.

This stunning home looks like it belongs in medieval Europe, not North Carolina.

Lines from a walking song are etched into a rock in Natural Bridge State Park.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

The only Florida state park with publicly accessible caves.

148 feet long and in the middle of a verdant forest.

Famous for its bio-luminescent inhabitants, known as "dismalites."

You'll need cowboy boots to trek to this old-fashioned saloon nestled in a giant natural cave.

An abandoned early-20th-century boomtown sits within the Calico Rock city limits.

Elvis's own personal tropical hideaway.