12 Natural Wonders That Don’t Exist Anymore (6 of 7)

Old Man of the Mountain (New Hampshire, USA)

This cliffside rock formation looked uncannily like a human face and was a beloved symbol for the state of New Hampshire. Indigenous legends surrounded it, and modern locals tried for decades to stabilize it with cables and concrete. But in 2003, gravity and weather made the “face” crumble, leaving only a rocky memorial.

Slims River (Yukon, Canada)

In 2016, climate change pulled off one of the fastest natural disappearance acts ever. Fed by the Kaskawulsh Glacier, the Slims River suddenly dried up when meltwater rerouted into a different river system. In just days, the once-mighty waterway became a dusty riverbed, and nearby lake levels dropped dramatically.