This extensive collection of dead bugs may be the world's most idiosyncratic and personal insect museum.

Museum dedicated to the terror regimes of Hungary.

Sitting beneath an unremarkable residential building is a museum devoted to classic Pinball.

A museum in the childhood house of a medical pioneer.

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

A peculiar museum that includes many drunken tales, a drunk driving simulator, and much more.

This heart-shaped island looks substantially less lovely after a recent bulldozing project.

Longest fortress system anywhere in Europe.

Large, airy hallways hide within an impenetrable fortress that beckons urban explorers.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

This narrow fjord-like bay is the largest ria in the Mediterranean Sea.

This modern, multimedia museum takes visitors on an evolutionary journey back in time.

A World War II evacuation tunnel turned into a history display of Croatian state and people.

Colorful concentric circles honor a small Croatian town's supposed spot at the nucleus of it all.

This 135-year-old weather station studied the effects of the climate on human health.

A tribute to an iconic act of defiance from the Croatian War of Independence involving a small car.

Croatia's towering concrete blossom grows from the site of a World War II concentration camp.

The remains of a sunken military ship wreck visible through clear water.

The complex has been abandoned since the Croatian War of Independence, barring a stint as a set for 'Game of Thrones.'

A wonderfully strange collection of 500+ stuffed frogs doing people things.

Inside the corridors of this flea market, visitors are sure to find some obscure and odd treasures.

This museum promotes informed contraception by documenting its often secret past.

One of the best collections of wax anatomical models in the world.

This grand manse has been transformed into a museum devoted to one of the founders of Fantastic Realism.