This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

A 19th century library favored by Edgar Allan Poe and H.P. Lovecraft, known by locals as "the Ath."

Swarovski's museum/theme park is a fake diamond fantasia overlooked by a giant.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

The beautiful baroque library of the Hapsburg empire.

A small museum filled with over 1,000 clocks, and one particular clock calibrated to run until the year 9999.

Terrifically morbid cemetary and site of famous Paracelsus' grave.

Trick water gardens from 1619 featuring a 200 piece mechanical theater powered by water.

An Austrian house of bones filled with hundreds of intricately painted skulls.