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

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

Part ski resort, part modern art space, this lodge brings giant metal spiders and bloody doors to the Austrian Alps.

Cave on extinct volcano, once home to famous mathematician Pythagoras.

This former Cyprus flight hub is now a crumbling, abandoned ghost complex.

Ottoman-era houses lovingly preserved.

Naturally protected city carved from a rock face.

The largest Neolithic ruins in the world hide a notably clean prehistoric metropolis.