Here are some examples:
* The Nazi Tank Trap: The iconic scene where Indy and his father, Henry Jones, are trapped in a Nazi tank trap features several skeletons.
* The Catacombs: When Indy and his father explore the catacombs under the castle, they encounter many skeletons, some of which are even dressed in medieval armor.
* The Final Showdown: During the final showdown on the mountain, Indy and the Nazis both encounter skeletons in the surrounding caverns.
These skeletons are often used to enhance the film's atmosphere of danger and mystery, and to emphasize the historical context of the story.