This Florida sinkhole hides a rainforest-like micro-environment in its depths.

North Central Florida's largest flea market and a weekend roadtripper's dream.

A glimpse at Walt Disney's vision for a "community of tomorrow," in miniature.

This stretch of highway is said to be haunted by ghosts of settlers whose graves were paved over.

Long before the Battle of Gettysburg occurred, dinosaurs roamed the area and left their footprints on this bridge.

Home of the only civilian casualty at the Battle of Gettysburg.

This recreation of a 19th-century dime museum is full of oddities.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.

Washington's iconic carousel has a nice piece of Civil Rights history.

The remains of Martha, the last known passenger pigeon, serve as a tool to educate about conservation.

The 28,000-year-old specimen is remarkably intact.

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

The monument's pointy aluminum tip has been melted down by repeated lightning strikes.

The walkable ruins of an 19th century hotel, destroyed in a horse cremation gone wrong.

A single room pays homage to the prodigious achievements of the 30th President of the United States.

This shifting North Carolina sand dune is an odd little desert surrounded by oceanic forest life.

One of the best places to see wild Colonial Spanish Mustangs in the United States.

Beautiful Gothic-inspired lighthouse stands out among the run-of-the-mill striped fare on Bodies Island.

Down the road from where the Wright brothers lifted off is another flight tribute practically hidden from sight in the woods.

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

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.

"X" marks the spot of an echo chamber in the middle of a plaza.

A once-groundbreaking power plant turned into a hotel and mini-museum of archeological and geological wonders.