The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

A slice of central Asia in the middle of Berlin.

A surreal museum of extraordinary industrial objects.

Fall down the rabbit hole into a surreal journey of human consciousness "from ass to soul."

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

An eerie, derelict amusement park in Berlin.

Secret Swing.

A book collector's dream, this Toronto bookstore has the world's first "Biblio-Mat," a random book vending machine.

Stroll through retro Paris while shopping for old postcards and discarded doll heads.

This small New York museum celebrates the mountainous artwork of a Russian mystic.

Relics given to a Manhattan church to avoid seizure by the Italian government.

Make a tough dinner decision: Octopus wasabi roulette or bull penis?

A very classy 1920s-era bar right in Grand Central Station.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

A lovers' beach, tucked below the surface of the island, provides a safe haven for romance.

A museum of alchemy and a basement laboratory all housed in an ancient building in a Gothic tower.

The mortal remains of an estimated 70,000 people lie in the basement of a monastery in Lima, Peru.

A church of bones, decorated with 40,000 human skeletons.

Site of the first pathological and bacteriological research facility in the United States.

A sealed test tube said to hold Thomas Edison's dying breath was given to the inventor's friend and mentee, Henry Ford.

A museum devoted to bringing to light forgotten or neglected histories through exhibitions, education and public programming.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

A whimsical, but often overlooked clock in Park Avenue.

This Fifth Avenue church has long been the favored worshiping place of Broadway actors and vaudeville performers.