Warsaw's fantastically preserved gasworks...almost.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

This fountain of a little boy that spits on passersby at erratic intervals is a town icon.

A former Nazi lookout tower with a magnificent view of the Rhineland.

Made from trees and then abandoned, this fence is still growing along a path in Germany.

Dilapidated ruins that once treated a notorious young serial killer, currently hosting vandals, squatters, and ghost hunters.

Once housing children next to hardened criminals this historic jail once displayed Ned Kelly's skull until it was stolen.