The world's only museum devoted to the wonders of fluorescence.

A magical place that lets you play in and explore the world of Studio Ghibli.

A masterpiece of LGBT art has been restored in what may now be the most valuable restroom in America.

The "Seinfeld" diner.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

The former private quarters and office of Dr. Sigmund Freud now hosts a museum housing the works of the founding father of psychoanalysis.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

A state-of-the-art medical facility from the Imperial era is now a derelict ruin.

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

An eerie, derelict amusement park in Berlin.