Water

These waterfalls can be twins or triplets, depending on how much it's rained recently.

Deep underground, the rusting remains of a German water pumping station from World War II.

This 165-foot water tower has been supplying the residents of Varel with drinking water for more than a century.

An underground river pushes more than 200 million gallons out of this Missouri spring every day.

The river that gave its name to a 1960s musical movement has a rather inauspicious starting point in town outside of Manchester.

The seventh largest spring in the world.

Only a few pieces remain of a grand 16th-century water clock that once announced the changing hours with the sound of bells, gongs, and drums.

In the little-known Pine Forest Range in northwestern Nevada, a natural lake of glacial origin.

A completely underground tour following the path of the most precious element: water.

Designed to celebrate the queen's 40th birthday.

Narrow gorges and deep pools created by long-ago glaciers.

Dr. Henry Cogswell hoped that his elaborate drinking fountains would dissuade people from drinking alcohol.

These unique rock formations were created during the Ice Age.