A fortress built to pacify local uprising that had a stint as a Nazi concentration camp before becoming a five-star hotel.

This derelict superstructure was a very important warning system for the Soviet military.

Get past the gatekeeper's apartment and enter an elaborate hoax of a restaurant with a Masonic feel.

This unassuming museum's slogan translates to “there is a limit of sadness, anxiety has no limits."

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

Romania's triumphal arch looks out over Bucharest.

A Romanian church built from one single oak.

A small town Romanian cemetery filled with darkly humorous gravestones.

It's hard to believe the dizzying patterns covering this abandoned mine are completely natural.

A giant portrait of an ancient king looms over the river.

This elaborately decorated, fairytale-like Romanian royal palace is one of the most striking castles in Europe.