Courtesy of ESA, here’s a fly-through video of Mars’ Hebes Chasma (direct link):
Hebes Chasma is an isolated depression just north of the Valles Marineris canyon system, and a bit east of the Tharsis region on Mars. The central plateau on the chasma’s floor is an odd thing geologically speaking (the only example of its kind on Mars), and is thought to be the remains of an ancient lake bed. The movie was created from images taken by the High Resolution Stereo Camera (HRSC) on ESA’s Mars Express orbiter.
H/T: ESA / DLR / Free University of Berlin (HRSC Principal Investigator G. Neukum)