where is indiana jones the last crusade filmed
Tabernas Desert in Spain's Almería province.
Indiana Jones and the Last Crusade
Principal photography began on May 16, 1988, in the Tabernas Desert in Spain's Almería province. 
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Indiana Jones and the Last Crusade [SEP] Filming
Principal photography began on May 16, 1988, in the Tabernas Desert in Spain's Almería province. Spielberg originally had planned the chase to be a short sequence shot over two days, but he drew up storyboards to make the scene an action-packed centerpiece. Thinking he would not surpass the truck chase from "Raiders of the Lost Ark" (because the truck was much faster than the tank), he felt this sequence should be more story-based and needed to show Indiana and Henry helping each other. He later said he had more fun storyboarding the sequence than filming it. The second unit had begun filming two weeks before.