1. Indiana Jones and the Temple of Doom
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2. Raiders of the Lost Ark
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3. Indiana Jones and the Last Crusade
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4. Young Sherlock Holmes and the Pyramid of Fear
5. Les Aventures Extraordinaires D'Adèle Blanc-Sec
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6. Indiana Jones and the Kingdom of the Crystal Skull
The first two just get better and better as I get older but Last Crusade seems a little weak now IMO. The 4th was never any good and only gets worse.