An apparition of Virgin Mary in Herzegovina.

A wellspring of natural Viagra found in Bosnia.

This Croatian island is for sale but no one is buying due to the dozens of accused Nazi sympathizers who were massacred there after WWII.

A curious little museum dedicated to the furry feline in the cat haven that is Old Town Kotor.

Go inside to really appreciate this 500-year-old technological masterpiece.

Venice's "Island of the Mad."

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

Climb inside an iron crystal magnified 165 billion times its normal size.

Most prolific publishing house in the 1600s open to the public.

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

Lavish royal estate punctuated with heated greenhouses.

The world's tallest boat lift stands as a massive piece of industrial tourism.

This former guildhall with a bacon-like exterior is now home to a museum covering 600 years of Antwerp's musical history.

According to this bar, God gave an “11th commandment” to Antwerp: Thou shalt drink beer.

To enter this cluttered-yet-cozy sanctum of Belgian brews, ring the bell and tell the gatekeepers you've come “to taste beer.”

A Museum of Psychiatry in a still-operating mental institution.

Sky ships, planes, and portraits left as unique tokens of hope and thankfulness.

This historic island prison holds one of the dungeons from the Count of Monte Cristo even though it is a work of fiction.

A crumbling island fortress that seems to be covered in a field of stone crosses but is simply incomplete.

A village of art and exotic creations.