This New Orleans tree is filled with hidden chimes that produce a carefully tuned melody.

Stroll through a wonderland of stupendous moss-covered trees.

Two hundred tons of pioneer artifacts were painstakingly recovered from a shipwreck at the bottom of the Missouri River.

A fascinating little museum dedicated to the thousands of chemical substances concealed in our food.

A 19th century artistocrat's mansion, turned into a library, hidden in a modern library.

Uh, pardon me, ma'am, but I couldn't help noticing that there's a Columbo statue in the middle of Budapest.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

Behold, a collection dedicated to Germany's favorite vegetable.

This museum glorifies the humble potato.

Housed in a century-old building, this museum's dedicated not just to soft drinks, but to the free enterprise system.

When flour explodes, it's not a pretty sight.

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

Over 20,000 sets of spice shakers reveal the surprisingly telling history of our most basic spices.

Central Europe's largest collection of mini-bottles is on display at this museum devoted to a bitter Hungarian liquor.

17,400 lbs., 12 feet in diameter, and 29 years in the making.

A museum devoted to osteopathy and its creator, Andrew Still.

This naturally-sourced hot spring is now home to a clothing-optional resort.

An old town theater converted into a celebration of the hobo legacy.

This tea house was a hand-built gift from Boulder's sister city in Tajikstan.

The history of the treatment of mental illness, illustrated in all its gory detail, and housed in an asylum.

This "zoo" is a cross between a junkyard and a sculpture garden, featuring animals you won't see anywhere else.

A place where the laws of nature seem to have gone completely berserk... but of course haven't.

The world's only three-story rotary jail is now a museum to a bizarre trend in prison design.

One of the world's most definitive collections of musical instruments, spanning all cultures and historical periods.