St. Augustine's record-setting narrow street was designed to protect against pirates.

The world's largest occupied bat houses hold hundreds of thousands of flying mammals.

This kitschy curio wonderland is full of fake animals, teak tables, and a cacophony of random bric-a-brac.

Despite being made of a seashell mortar, the crumbling remains of this historic Florida mill are still standing.

Built in 1927, this pink stucco hotel once hosted stars of Hollywood’s silent movie era. Now it's being brought back to life.

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

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

The unique collection includes bronze cast handprints of some of America's most famous astronauts.

A building so large that it has its own weather.

This abandoned NASA launch site is now a memorial to a trio of astronauts who were killed there.

A remnant of the last Ice Age, this lake is surrounded by fascinating rock formations.

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

The home of 1.5 million wood letters for printing is still a functioning workshop.

A town filled with hot chocolate, dazzling lights, and lots of Christmas cheer.

One of the last surviving C-97s sits in a field in front of a Wisconsin inn.

A unique botanical garden housed in three giant geodesic domes.

More than 5,000 contemporary and "historic" mustards from around the world.

A giant, Gilded Age mansion that once belonged to the beer baron of Milwaukee.

This striking art museum holds an amazing series of curiosity cabinets.

Wisconsin's most celebrated export gets the royal treatment on I-94.

A bizarre house filled with an astounding array of collections.

This cave holds a surprisingly colorful variety of geological oddities.

Stumps of an Ice Age forest, visible only at low tide.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.