A Container is an object that appears in Diablo and Diablo II and have been confirmed to be present in Diablo III, the interactive environment making containers even more interesting.
They can contain items, gold, or, most of the time, nothing. They can also contain insidious traps, such as: poisonous clouds, novae, and Fireballs, they can also just burst into flames. Some types of containers, such as barrels, when broken, release a skeleton from inside.