The site where Poe "in great distress, and ... in need of immediate assistance" likely died.

The former hotel where Tesla invented the radio.

The most confusing clock in New York.

Visit the monolithic tomb of America's most famous general.

A curious fountain that has no water and includes Satan, a crab, and 9 giraffes.

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

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

A bizarre roadside attraction and the first instance of miniature golf in the world.

Electrical pylon in the shape of Disney's beloved mouse.

Ornate limestone building now filled with geologic specimens, and more.

The world's largest anatomically accurate brain sculpture.

If astronomy had a ghost, it would look like this observatory.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

A beautiful geyser under environmental threat.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

A museum dedicated to the history and exploration of both popular music and science fiction.

A rotting tree in the middle of Seattle doubles as an elaborately-controlled art piece.

A wall of chewing gum moonlights as collective art.

St George's Leprosy Museum depicts the gruesome afflictions of those suffering from the disease.

Home to 10,000 medical specimens including the remains of Rudolf Virchow's extensive collection of pathological specimens.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

A whimsical bridge adorned with decorative dragons.