Rare recess caves fill this unbelievably beautiful Ohio park.

An abandoned relic of the city's failed experiment with below ground transit.

The largest earthwork effigy in the world.

Take a drunken tour inside the world's largest known geode.

The home of Ireland's last leprechauns is officially protected by the European Union.

A miniature village lies nearly forgotten in the forest by the side of a major highway.

A local tree surgeon has created a whimsical walk full of carved tree stumps near Scotland's Loch Lomond.

This enchanting forest trail leads to ethereal abodes and a giant bird's nest.

The park is home to the United States's only still-operating Dutch windmill.

A charming remnant of 19th-century fishing towns sits on Michigan’s Leelanau Peninsula.

Hidden beneath the waters of Lake Michigan rests a perfectly intact ship from the early 1900s.

This little barrel-shaped cottage by Lake Superior was once a cartoonist's summer retreat.

This lighthouse and shipwreck museum keep a torch burning for the memory of the SS Edmund Fitzgerald.

There is an art, a science, and certainly a responsibility to occupying The Big Red Chair, and this is where it's learned.

Largest tulip festival in America, includes fireworks, a parade, and a carnival.

This protected area in Lake Huron contains some of the world’s best-preserved shipwrecks.

A painted-over wall in Detroit originally built to segregate a black community from an adjacent white development.

A subterranean world of tunnels links several buildings of this rare 19th-century asylum.

Enormous small-business mecca in the Midwest, serving dozens of artists.

Though its branches are painted bright colors by generations of locals, the tree is said to be a haunted portal to hell.

Unique Michigan homes look like something out of Tolkien's "The Lord of the Rings."

A popular place to pick up prehistoric coral fossils from the time when Michigan was an ocean.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

The remains of an abandoned dinosaur theme park litter the woods just off the highway.