With stones rising 220 feet from the ground, Tsingy de Bemaraha Strict Nature Reserve in Madagascar tsingy, which, euphemistically translated from Malagasy, means "where one cannot walk barefoot." casts a landscape unlike any other. Composed of large limestone structures, the stone forest was once submerged completely underwater, some 200 million years ago. , the razor-sharp formations spread across 230 square miles, creating a dramatic scene.