This giant satellite antenna services the transmission needs of government agencies and cable programmers.

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

Sniff the Titan Arum's rotting flesh.

Carvings in Turkey's Marble Road may have directed ancient Romans to a hidden brothel.

The ancient latrines of the Greeks, in all their public glory.

This crumbling medieval basilica once attracted pilgrims by the thousands to collect a miraculous dust that formed above the saint's tomb.

Seven early Christians were sealed into a cave where legend has it they slept unharmed for centuries.

These ruins once flourished as the capital of the Lydian kingdom, often credited with the invention of metal coinage.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

This hidden oasis features a stunning view of the Hudson River and the Palisades from a castle-like museum.

Mysterious 500-year-old tapestries depict a unicorn hunt.

Home to an endangered salamander, a full moon celebration, and a large spring-fed outdoor swimming pool.

This simple frog painting created by musician Daniel Johnston embodies the spirit of Austin.

The highest point in Delaware is located under a trailer so this marker across the street will have to do.

A drab two-story office space in Delaware is a hidden tax haven for Hillary Clinton, Donald Trump, and over half the Fortune 500 companies.

The tombstone of the founder of the lost town of Ogletown is now stuck inside a traffic median.

Near-constant high winds deform the trees on Spruce Knob, the highest point in West Virginia.

Unique tower has outlasted a takeover of the company.

You thought Santa Claus didn't exist, but it turns out you were wrong.

The farm where one of America's greatest leaders was raised is now a well-appointed landmark.

The hometown of Popeye's creator is littered with a growing collection of granite cartoon characters.

Now nearly abandoned, Kaskaskia was once the capital of Illinois and one of the most important towns on the upper Mississippi.

The massive, original Colgate Clock is mounted on a defunct factory building that was once a prison.

The oldest operating Mississippi River–style steamboat still navigates the Ohio River.