Online UFO hunters claim 'cross,' 'collapsed temple' spotted in Mars photographs

Online UFO hunters have spotted what they claim is a 'cross' seen on a rocky hillside surface of Mars.

The 'cross' feature was spotted in two photos released by NASA.

The alien enthusiasts at and at say the 'cross' is located by nearby 'temple' which appears to have been carved from rock and to have collapsed.

View the NASA images: