Kouri Island

This guide to Kouri Island's heart-shaped rocks in Okinawa asks you to find one exact spot on this beach where two odd, wave-carved boulders line up into an unmistakable heart, though step even slightly to either side and the illusion falls apart. It traces how thousands of years of coral limestone erosion shaped these two unremarkable forms, and how a Japan Airlines commercial crew stumbled onto the one angle that makes them align. Come at low tide, when the rock bases sit bare on the sand and you can walk out and trace the ridges by hand.