It’s not hyperbole, it’s true. I still have my picture postcard of a tiny El Greco painting bought in the gift shop and remember the big statues of Velazquez and Goya that sit outside the entrances of the museum. Go see the Black paintings and purchase a little guidebook from the vending machine – they come in a ton of languages. Good place to seek respite from the glaring Spanish sun. Free on Sundays?