Image : Climbers at the bottom of the Golondrinas cave in Aquismon Region, Mexico. The towering walls of rock range from 325 feet tall to the deepest open-air pit in the world, Sotano de las Golondrinas (Cave of Swallows), which is over 1000 feet deep.
This beautiful train track is naturally covered by green trees and makes a tunnel. Located in Kleven, Ukraine, this train tunnel is named as. “Tunnel of Love” by local people. These incredible photos were taken by Oleg Gordienko.