Terre Rouge was a large steel works in Luxembourg. The iron-ore silos remain with a nice reflection in the water below, and the sites power plant, Central Thermique remains.
A former Victorian water works laid out in the form of a water garden. The water from Swithland Reservoir was originally cleaned here and served the population of Leicester.
A disused mine in Wales, with a huge pile of motor vehicles that have been dumped through a small opening, making an amazing reflection in the underground lake below.