Photo of the Day
Each day, we highlight one extraordinary photograph from National Geographic. Check out more of our photos here.
cavers in orange jumpsuits climbing through enormous underground crystals in a cave
October 18, 2020 | Cave of Crystals
Massive beams of selenite dwarf explorers in Mexico's Cave of Crystals, deep below the Chihuahuan Desert. Formed over millennia, these crystals are among the largest yet discovered on Earth.
