A whimsical art tower at a Bavarian brewery includes a grotto for its mythical beer-brewing dwarves.

This impressive castle looms over small German town.

Originally envisioned by King Ludwig II to rival Versailles, Herrenchiemsee's "New Palace" remains half-gilded for lack of funds.

A graveyard and memorial chapel for victims of leprosy.

The fairy tale castle of the "fairy-tale king."

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

Go inside a revolutionary, cage-less zoo where 70 species of monkeys roam free alongside their human visitors.

This house's itty bitty size means no humans allowed.

This architectural oddity is an oasis of green on the outskirts of Valencia.

The odd cement nubs littering this Spanish square are actually the entrances to a series of buried silos.

An enigmatic mural hiding in plain sight in one of São Paulo's busiest metro stations.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

This is what trains will look like after the zombie apocalypse.

“And the Lord said unto Johan, build for thee an ark for the end of the world is approaching.”

The bridges portrayed on EU currency aren't fictional anymore.

A 16th-century horror show built in a lovely Italian garden.

This immaculate and historic water garden culminates in a massive stone dining table with an inset fountain for chilling the wine of the Cardinal's guests.

This quaint Italian town keeps losing ground as the sides of its plateau slowly erode.

The remains of a town so thoroughly destroyed by French forces that the citizens simply left.

Gods clash with machines in a power plant regenerated as a museum.

The final resting place of the poets Shelley and Keats.

Hitler's bleak vision of relaxation still stands as a mostly abandoned 10,000-room resort complex.

This Nazi ruin was the site where Hitler was almost blown up by a suitcase bomb.

Building Men of War and Indiamen from Holland's Golden Age.