Germany's drought uncovers ominous 'hunger stones'

STORY: These ominous 'hunger stones' are

being uncovered along the Rhine River

Locator: Rhine River, Germany

The boulders are usually submerged in water

but are peeking out due to the drought

There are names carved into them

next to the dates of previous droughts

some of them as far back as 1947

Their reappearance used to serve as a warning

that famine was just around the corner