This dam in the woods, built by Henry Ford with only manpower and oxen, holds no water and serves no purpose.

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.

This ruined medieval castle was the scene of Lord Robert Dudley’s seductive reception for Queen Elizabeth I.

Outposts of this restaurant chain were shaped like jaunty chapeaus.

A three-story tower of books about Abraham Lincoln is one of the more unusual monuments to the president.

England's largest white horse isn't even white.

One of the world's tallest statues is also one of its most hated.

Once thought to be the fabled Holy Grail, it is now known to be an oil lamp.

Built just after the American Revolution, the oldest row house in New York City still stands in Chinatown.

The bombed out remains of the old church were kept intact next to the new one, as a reminder of the futility of war.

Baroque celebration of the end of the Great Plague of Vienna.

Possible relics of the ancient Roman city are hidden in this restaurant's façade.

A plaque immortalizes the spot where the early American spy said his famous last words: "I only regret that I have but one life to lose for my country."

World's largest Christmas store.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

San Francisco's oldest surviving monument and meeting place for 1906 survivors.

Only hotel where you can legally launder money.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

The site of the climactic scene from the classic horror film is now a historic landmark.

A 1,100-ton train fell through the floor in 1953. Workers got it patched up in just 72 hours.