While the words beach vacation usually call to mind a tropical white-sand beach studded with palm trees and lapped by turquoise waters, the truth is that the world's beaches come in all shapes and sizes
some stranger than others. There are black, green, red, and even purple stretches of sand. And did you know that there are sands in Zanzibar that do a daily disappearing act, and a dragon supposedly visits a beach in Hong Kong? Humans also add their own bizarre twists to the beaches of the world and have even tried to trump Mother Nature. Just look at the world's largest swimming pool (pictured), which runs alongside a gorgeous Pacific Ocean beach in Chile. Oh, what will they think up next?
