Fresh wooden posts have been added to ancient holes to recreate a primitive henge clock.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

A river with some unusual, and occasionally dangerous, habits.

Known as the "Cross At The Crossroads," this massive metal cross is just short enough to avoid the FAA.

A science teacher's dream.

Once called the "Polish Gold Coast" it is an icon of the neighborhood that bears its same name.

The palatial McDonald's that inspired Wesley Willis.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

Arguably the best example of an authentic Dutch windmill in the United States, rivaling its counterparts in the Netherlands.

When you visit his grave, be sure to rub the Great Emancipator's nose for good luck.

The history of funerals and funerary customs.

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

Hear the quietest sound from across the dome.

A place to eat for on-the-run agents and espionage enthusiasts.

An ancient knight and a symbol of the city's freedom.

This striking art museum holds an amazing series of curiosity cabinets.

Wisconsin's most celebrated export gets the royal treatment on I-94.

Pilgrimage site for star-crossed lovers.

A six-story-tall golden pyramid, surrounded by a moat.

Quirky water tower advertises the long-gone Brooks Tomato Products Co.

These pretty kitties killed and ate as many as 135 railway workers.