Hundreds of lucky felines haunt the ruins where Caesar was murdered.

Devilish masks, handicrafts, and pieces of old buildings create a snapshot of life in a historic Alpine region.

At this exhibit on the world of poison, venomous animals steal the show.

Visitors dip into a variety of pools of what was once ice.

Ugly 18th-century dwarf statues living in a perfectly landscaped Austrian garden.

A centuries old castle atop a dormant volcano houses museums devoted to both women and witches.

Beautiful Austrian natural history museum with carved ceilings and row after row of ancient taxidermy.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

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

Macabre museum devoted to historical Viennese murders.

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

This former insane asylum now holds a pathological anatomy museum.

The 700-year-old fortress was the site of Count Orlok's castle in "Nosferatu."

Over time, this castle grew to encompass the entire island.

Things aren't quite what they seem at this mind-bending museum.

Guests become prisoners on a visit to Latvian prison.

Long before ultrasounds and modern testing, medical specimens like these conjoined twins helped physicians learn about congenital anomalies.

The greatest amusement park in the world is wall-to-wall farting dogs, puking rats, and cows with exposed breasts for the whole family.

A public display of random paleontology.

The original home of the Lego has a huge amusement park dedicated to the iconic plastic toy.

A novel collection of medical curiosities housed in an 18th-century surgeon training academy.

This secret collection of the strange and occult was rediscovered in a forgotten room of an old house.

This lonely rock has been turned into a character loved and feared by children.

Roughly 17 million letters to Santa have found their way to this Arctic Circle post office.