Al Karaana Lagoon

This hydraulic power system in London was, at one time, seen as a rival to electricity and the last of its kind to shut down.

These semi-natural waterfalls hint at the park's Victorian-era industrial past.

These crevices cut into the mountains collect the island’s main source of precious freshwater.

Traces of the thriving lake trade that once linked the Soviet Union with Mongolia.

This old residential building was once the largest flour mill in the world.

Thriving meadows span a rooftop in one of Brooklyn's most heavily industrialized neighborhoods.

This sun-scorched lakebed contains samples of half the natural elements known to humankind.

Abandoned tunnels dug for the once-thriving sea salt industry on the coast of southern Spain.