This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

Over 12,500 words are scrawled across each room of this historic plantation house and no one knows why.

Public works and national defense project meant to carve a canal all the way across the state of Florida.

A replica of where the Last Supper was held.

More than 450 years ago, an Italian nun became the first woman to paint the iconic subject.

A painting in the historic Cathedral Basilica depicts Jesus and his disciples dining on a traditional Peruvian menu.

The humble home where the famous beat author lived briefly and wrote one of his most famous works.

The ruins of a once-thriving sugarcane plantation that was burned in the Second Seminole War.

These mysterious ruins are hidden amid this sleepy coastal city.

A local road runs around a memorial to a teenager who died in 1860.

One of the largest Native American shell middens stands 30 feet tall.

Where serial killer Aileen Wuornos drank her last beer.

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

A private museum dedicated to preserving the heritage of Mardi Gras' most beloved underdog parades, open by appointment.

A prime example of New Orleans' unique architecture these early 20th century homes were built to look like steamboats.

After the parade, students throw their beads on the tree hoping for good luck on exams.

The world-record holder for the longest bridge stretching continuously over water.

This isolated airport in the middle of the Everglades sees more alligators than planes.

World's largest precision optical instrument used to detect Einstein's elusive gravity waves.

A former taxidermist has turned his old shop into a folk art mecca.

This bird-loving brewery is situated in an old municipal bathhouse, nestled beside a 300-year-old windmill.

A sculpture dedicated to Napa Valley's oldest mineral water company.

A secret door leads to this cozy dive that sells only “milk.”

This subterranean spot might be the epitome of Japan's baroque, retro coffee houses.