The perfectly preserved underground rooms where Churchill plotted the war against Germany.

The capital of the Cayman Islands is a center of offshore banking, but gets battered by blistering hurricanes.

Send a postcard while vacationing with Satan.

The only free-standing, vertical sundial in the US was keeping standard time before it was even invented.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

One of the oldest living oak trees in the Southeast.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

This historic train station has been converted to a locomotive themed hotel.

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

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

The first public building in Savannah to offer air conditioning was a luxurious cinema that still operates today.

A statue honoring 44 continuous years of greeting passing ships.

This kitschy tavern is also home to rare early editions of "Treasure Island."

Tucked away inside a historic Savannah hotel is a hundred-year history presented in ladies' lids.

One of Savannah's oldest and most haunted cemeteries, featuring graves desecrated by Sherman's Union Army.

Japan's largest and oldest annual procession of floats, begun in 869.

Peace Park and the Atomic Bomb Dome.

Legend holds eating just one of these black eggs can add seven years to one's life.

A plaque marks the site directly below the mid-air detonation of the atomic bomb over Hiroshima.

This 700-year-old street food market features baby octopus and soy donuts.

Open-air museum with an elaborate sculpture garden, stretching for over 70,000 square-meters.

The 10,000 Torii shrine.

Tokyo’s only Vaudeville-cuckoo clock–steampunk-Victorian curio cabinet time piece.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.