A small but immensely extravagant palace built by the "Night King."

This unique Renaissance castle was turned into a home for Nazi occultism.

An exquisite Baroque church in Vienna's old town.

A neo-Gothic church built to thank God for saving the Emperor of Austria from an assassination.

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

The topiary maze at the Habsburg hunting lodge.

Roots and stumps that lay inundated for two millennia are on display in Japan's city of three mysteries.

The deadly but beautiful ornamental oleander was planted all over the island of Galveston after the hurricane of 1900.

Beneath the impressive baroque cathedral that rises from the center of Berlin lies the largest collection of Prussian royals in the world.

Overlooked amid the tourist bustle of Florence, this museum is dedicated to the craft of stone inlay.

The bizarre visions of H.R. Giger, tucked away in a Swiss medieval city.

Museum of science fiction, utopias, and extraordinary journeys of the mind.

Back in 1952, you could get a mushroom cloud chaser with your atomic cocktail.

The second-largest gold nugget in existence, displayed in a Las Vegas casino conveniently named the Golden Nugget.

The best Tiki bar in Las Vegas.

This institution collects the history of burlesque dancing with a titillating collection of ephemera and pasties.

Thousands of exquisitely carved stone water storage wells, hundreds of stone steps fill this exquisite medieval stepwell.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

Notorious artist squat renovated into legal studios.

Famously misunderstood wonder of the ancient world

Site of a former hidden treehouse in New Orleans.

The largest of London's subterranean rivers and once a mad, bad center of London life.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

A collection of haunted artifacts chronicles the career of the world's most famous paranormal investigators.