This Italian foot path winds through the mountains via 52 individual tunnels.

This sword isn't waiting for a king to pull it out. It was placed there by a saint.

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

Rome's semi-secret peephole vista is also a former Crusader stronghold.

Architectureal fantasy quarter of Rome.

This massive statue is the personification of Bavaria and the first colossal statue of the modern period composed of bronze.

This beautiful 19th-century temple stands atop the ruins of its predecessor.

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

This former Nazi castle was built as a school to train what would have been the future of the Third Reich.

This incredible stone temple is a monument to death, victory, and fantasy architecture.

This Nazi-built amphitheater was constructed on a sacred mountain site used by various German cults.

The prototype for all Nazi concentration camps.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

A unique bridge with an equally unique view.

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

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

Soaring over 6,000 feet in the Bavarian Alps, this beer garden was once Hitler's 50th birthday present.

This proud Teutonic warrior rises out of a German forest heralding a victory and measuring lightning.

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

A beautiful mountaintop mausoleum devoted to a Montenegrin icon can't seem to make everyone happy.

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

A military museum, art park, mausoleum, and architectural oddity all on one fascist's estate.

A map of Italy made entirely of trees.

Small French town or alien garage?