Pretty Extensive Question, but some of the most famous are: Fiesta del Sol in Merida, which coincides with Carnival in Feb. The fiesta de San Juan, along the Venezuelan coastal towns of Aragua, mainly the Henri Pittier. They are held sometime in June if I am not mistaken, and the famous Diablos de Yare, held I belive in june as well to Celebrate the Corpus Christi.
I believe the information contained herein is accurate, but you may want to look up on the dates.
All the best,
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