These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

One of the oldest seagoing boats in the world can be found at the Dover Museum.

Constructed along the shores of Lake Zurich, this pavilion is a walk-through work of art.

This house proudly displays an interactive and continuously changing exhibit of lawn flamingos.

This lighthouse was crafted as penitence for the theft of wine bound for a monastery.

This ancient settlement contains some of the largest earthen mounds in North America.

When the town wouldn't allow the fast-food behemoth to build a new restaurant, they put one inside an 1850 home.

All that's left of the quintessential "cabin in the woods."

This award-winning men's bathroom was just too beautiful to not allow women to see.

Science fiction's grandfather has a fittingly marvelous tomb.

An actual 1957 Cadillac De Ville, encased in 15 cubic yards of concrete.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

These wooden pipes were crucial to providing water to Medieval Edinburgh.

What started as a way to address damp basement walls turned into a house filled with intricate hand-carved designs.

Try not to get slimed in Tribeca.

Underneath the bustling city streets, a hydroponic farm grows unique herbs in an urban oasis.

The medieval legend behind this holy well was one of the inspirations behind "Alice's Adventures in Wonderland."

Imagine having a street run right through your home, or better yet, a historic bridge three stories high.

This fairy-tale castle would make Dracula (who is said to have been imprisoned there) jealous.

Mysterious meeting place for UFO hunters near Area 51.

Denmark’s never-ending bridge.

This small shop walked so America could run on Dunkin'.

One of the famous Czech artist's lesser-known Prague installations appears to be a glowing fetus affixed to a drainpipe.

This 170-year-old Swiss guesthouse built into the side of a mountain is best accessed by a cable car.