Photograph via Bregothehorse on Reddit
This stunning rock formation is located at Iguazu Falls. Apparently this particular view can be seen from the lookout on San Martin Island on the Argentinian side of the falls.
Iguazu Falls are waterfalls of the Iguazu River located on the border of the Brazilian State of Parana and the Argentine Province of Misiones. The falls divide the river into the upper and lower Iguazu. The Iguazu River originates near the city of Curitiba. It flows through Brazil for most of its course. Below its confluence with the San Antonio River, the Iguazu River forms the boundary between Brazil and Argentina.
The total height of the falls is about 60-82 meters (200-269 ft). There are approximately 275 different drops and the total width of the falls is a staggering 2.7 kilometers (1.7 miles). [Source: Wikipedia]