Noctis Labyrinthus
Noctis Labyrinthus The hauntingly-named Noctis Labyrinthus (which means 'labyrinth of night') is a fascinating region near the equator of Mars, pictured here in an image from ESA’s Mars Express orbiter. ESA / DLR / FU Berlin

Noctis Labyrinthus is home to a network of intersecting canyons, some as deep as 6 kilometers (3.7 miles). The canyons were likely created by past volcanism in the nearby region of Tharsis, which would have caused the planet’s surface to arch upwards and then collapse.

The European Space Agency created a video animation depicting a fly-over of the area, based on data from the Mars Express observations of the system.