Mars — or any other planet — is just as close as your imagination with this exploration vehicle building set from Lego. The 1,599-piece set builds a large rover that has everything needed for planetary surface exploration: six wheels, a crane, gas canisters and containers for samples, equipment, and a small autonomous rover. The suspension is fully articulated and the rover itself expands to form a bed for equipment. Open the roof to reveal crew quarters with a shower, toilet, treadmill, and refrigerator. The stars are calling.