Some objects on the Martian surface are bizarre, while others look like cyclopic constructions or giant sculptures made by modern artists. Human faces, giant spoons, strange canals, and unnaturally round craters - you can find everything there, but no traces of humankind yet. But maybe one day we will be able to fix that and will see all these things with our own eyes!

A small part of the Cydonia region that resembles a face seen in a photo taken by the Viking 1 Orbiter and released by NASA/JPL on 25 July 1976.

Curiosity manoeuvres into Kimberley region and scans scientifically intriguing Martian rock outcrops in search of the next drilling location, exhibiting several shallow hills in the foreground and dramatic the Gale Crater’s rim in the backdrop.

Image of a dark, smooth-surfaced rock, confirmed to be an iron-nickel meteorite, captured by NASA's Curiosity Mars rover.

Spoon-like formation on the Martian surface.

The small spherules on the Martian surface in this close-up image are near Fram Crater, visited by NASA's Mars Exploration Rover Opportunity in April 2004.

A tiny structure that looks like a human figure, photographed by Mars Exploration Rover Spirit on a Martian plateau in 2007.

This observation from NASA's Mars Reconnaissance Orbiter shows that it is late summer in the southern hemisphere, so the Sun is low in the sky and the subtle topography is accentuated in orbital images.

A rock that may look like a femur thigh bone, captured by Curiosity, which is probably sculpted by erosion, either wind or water, according to the mission’s science team.

A small, bright object on the ground beside the Curiosity Rover at the "Rocknest" site.

An oddball rock shaped like a face, captured by NASA's Curiosity Rover in a photo on the Red Planet.

A round 5mm concretion on the Martian surface.

An image captured by the Mars Reconnaissance Orbiter looking down onto what NASA describes as an "enigmatic landform".
