This illuminated sign was the first of its kind in Canada and remains a vestige of the Atomic Age.

These mysterious ruins are hidden amid this sleepy coastal city.

Now a public art piece, this curious metal feature originally advertised a tinsmith's services.

This defunct Champlain Oil service station harkens back to the early days of automobiles.

These prehistoric replicas were based on actual skeletal remains.

This monument marks the beginning journey of a wounded soldier's leg that ended up almost two states away.

Known as the “Official Greeter of Juneau,” this dog still welcomes ships and their passengers to Alaska.

This quirky piece of naval artillery has been deafening Canadians for over a century.

Disney World's very first waterpark is now an abandoned ruin being reclaimed by the swamp.

Disney's abandoned animal island is now an overgrown ruin that was almost the coolest attraction ever.

Bronze footprints mark the path where a civil rights leader tried to march in peaceful protest before being knocked unconscious.

A replica of one of the more than 15,000 civilian lookout towers that lined the U.S. coast during World War II.

Mariners once used this prehistoric landfill as a navigational landmark.

Florida's oldest bar was once a morgue, complete with a hanging tree and gravestones.

The birthplace of American international flight service has been turned into a celebrity's microbrewery.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

This abandoned NASA launch site is now a memorial to a trio of astronauts who were killed there.

After the attack on Pearl Harbor, rocks and fossils from every U.S. state were collected into a pyramid of national unity.

Where serial killer Aileen Wuornos drank her last beer.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

The ruins of this antebellum sugar plantation are the end result of a Seminole attack during the Florida Wars of 1836.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

Known as the "Kissing Bridge" for its privacy, it also happens to be the last covered bridge in Ontario.

A massive, fading granite poem is all that remains of one Whitman superfan's tribute to the famous writer.