I live in Spain, steps from not only the spot where in 755 Umayyad Abd ar-Rahman I of Damascus, the founder of the Emirate of Cordoba, arrived from North Africa to establish his kingdom, but also the spot where the Muslims were driven out in 1489. At the base of the spot, called the Peñon del Santo, is a statue of Abd al-Rahman I and at the top is a huge cross that is lit up at night and visible many miles out to sea, put there to commemorate the return to Christian rule. Other than that there are no celebrations, good bad or indifferent. We do celebrate Semana Santa, the week leading up to Easter, where they parade huge religious statues carried by over 100 men and women through the streets at all hours of the night and day leading up to Easter. If there was a celebration to mark victory over Muslims it would have been done away not out of political correctness but because it wasn't enough of a tourist attraction to justify the cost. Our other big celebration is the 3 King's parade on January 6th. The end of Christianity in Spain is more media wishful thinking that actual reality.
Finally, so you can get a basic idea of what it's like, Semana Santa This celebration is repeated in thousands of towns across the country, most just as elaborate or more elaborate than ours.