Cargo/Storage Units on Mars?

Video from: Martian Archaeoligist

Photo From: Brian Hopjins‎ EXCLUSIVE MARS IMAGES

They look like cargo/storage units, that's definitely not a natural formation.

Nasa source: http://mars.jpl.nasa.gov/msl-raw-images/msss/00109/mcam/0109MR0685027000E1_DXXX.jpg