We booked a tour through Madrid Museum Tours to see the highlights of the Prado and the Reina Sofia museums. Irina K. was our guide. She was outstanding! Our tour was supposed to last 4 hours, but went over into a 5th hour. Irina showed us several major masterpieces at both museums, told us about the historical period and the artist and pointed out details in the paintings that we would never have known. We learned so much and only wanted to the tour to end so that we could sit down for a rest. If we ever make it back to Madrid, we would definitely book another tour with Irina to learn about even more paintings.