Massive beams of selenite dwarf human 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.
Lights line the banks of Lake Como, as seen from Monte San Primo in Lombardy. After visiting the lake in 1875, composer Franz Liszt remarked, "When you write about two happy lovers, let the story be set on the banks of Lake Como."