The Curonian Spit is a 60 mile-long and skinny stretch of sand separating the 625 square-mile Curonian Lagoon from the Baltic Sea. It is jointly shared by Lithuania and Kaliningrad. The trees of one section of the pine forests covering the spit are weirdly twisted and distorted by some unknown force of nature. Their bizarre undulations have earned it the sobriquet, “The Dancing Forest.” It’s one of the as-yet unexplained mysteries of life on our planet, and a wondrous one to see. (Glimpses of Our Breathtaking World #200 photo ©Jack Wheeler)