A unique home built by Andrew Jackson Caldwell that also served as a military hospital.

This huge clock made of flowers and simple machinery was once used a political weapon.

Kentucky's anomalous peninsula projecting into the Mississippi River, site of legendary earthquakes and local feuds.

The largest cemetery in Louisville is the final resting place of Col. Sanders and Muhammad Ali.

This grave marks the final resting place of a legendary frontiersman... unless it doesn't.

Kentucky, Tennessee, and Virginia meet at this point in the Cumberland Gap.

This modern castle sat empty for decades before a fire inspired its builders to complete its luxury halls.

The world's longest known cave system.

What appears to be a wizard's lair in Milwaukee actually houses a massive water pipe.

Statue dedicated to the star of an old television show.

This coffee shop lies hidden beneath a historic church.

This sculpture marks the spot where one of the greatest Roman rulers was proclaimed emperor.

This memorial to World War II's fallen airmen shows us the movements of the stars that once guided them.

Follow the original medieval paths that wind through this intriguing section of the city.

The bones of two medieval royal lions were discovered at the historic fortress.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

The ritual has been performed uninterrupted for nearly 700 years.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

The rough and tumble president's childhood home displays the shirt he was once shot in and the speech that saved him.

Read between the lines of the subway map to find the hidden abandoned Civil War fort.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

Legend has it that this bronze orb, which sat atop an ancient Egyptian obelisk, once held the ashes of Julius Caesar.