The Beaux-Arts aquarium boasts a vast collection of saltwater and freshwater fish on an island in the Detroit River.

Unique collection containing a wide and curious range of contraceptive items.

Traditional 11th-century outdoor tannery.

The 80-foot tire that looms over Michigan's I-94 was once a Ferris wheel in the New York World Fair.

Berry Gordy Jr.'s old home was the original headquarters of Motown Record Corporation.

One of the largest crucifixes in the world stands 55 feet tall in a secluded, wooded area of northern Michigan.

Three floors of musical instruments coming from all corners of the world and hundreds of years of musical history.

Popular tourist destination now stands as a memorial to Sam the koala.

Perfume museum and library.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

Marvel of green building techniques that sings with the wind.

Life's work of sculptor Elisabet Ney remains preserved in her last studio.

A bronze monument to the infamous radio broadcast in the real New Jersey town where the fictional Martians crash-landed.

Marked by the hand of the explorer Henry Morton Stanley.

The oldest Italian café in Boston, this spot also serves as a veritable museum of vintage coffee ephemera.

Stolen goods adorn the organ at Old North Church.

This massive store is home to an eccentric collection of vintage, retro, and peculiar goods.

The oldest wind turbine in Europe, constructed by a group of friends in 1932.

Authentic gondola hanging from the ceiling, notable mural in the back room.

Local legend has it that an old, decaying staircase outside this cemetery is haunted by dozens of ghosts.

Legend says this cave housed a 16th-century cannibal and his family of 48.

A famous alternative culture epicenter and where Joplin serenaded young hippies.

Roadside tribute to a staple of eastern European cuisine.

Controversially claiming the title of world's biggest bass drum, UT's Big Bertha was once made radioactive by the Manhattan Project.