When mummies were buried, they were typically placed in elaborately decorated coffins or sarcophagi. These containers were often made of wood, stone, or metal, and were often adorned with carvings, paintings, and hieroglyphics. The coffins were then placed in a burial chamber, which could be located in a tomb, a pyramid, or another type of structure. The burial chamber was sealed off to protect the mummy from grave robbers and other dangers.