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

A massive marble foot is tucked away in a small alley near the Pantheon.

A Nesting Doll of Churches.

An ancient Roman temple first dedicated to an emperor's wife is now a church.

The only remaining arch of the oldest stone bridge in Rome stands in the middle of the Tiber.

This ancient market is often referred to as the oldest shopping mall in the world.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

The engineering wonder and pleasure dome of a much-maligned emperor still holds undiscovered secrets.

Must form and function forever remain at odds? Not if the Florida Department of Transportation has its way.

These simple structures are living monuments to the fishermen who built this community over a century ago.

An unusual college football tradition involves burying pieces of sod from competitors' turf, replete with tiny coffins and headstones.

Electrical pylon in the shape of Disney's beloved mouse.

A tribute to a future time when gravity is conquered.

"Bite or Smite" became the unlikely mascot of a Tampa suburb.

Just below the surface, shrimp are producing temperatures hotter than the sun.

This small museum gives visitors a chance to soak up the history of the "sponge capital of the world."

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

Like Mardi Gras, only everyone's a pirate.

One-time winter retreats of prolific inventor Thomas Edison and his friend Henry Ford.

Former villa and estate of James Deering developed to preserve native tropical forests.

Florida might be at its most surreal in this museum devoted to the famed Spanish artist.

A 56-foot tall statue of the god of fire looks out over Birmingham, Alabama.

Two stone columns flank the grand Venice square, but there were supposed to be three.