I visited the Prado museum today. Thank God I followed the tip of a friend of mine who visited the museum a few weeks back. I went to the back entrance of the museum, Murillo entrance as this is the queue to go to the main exhibit. Usually, tourists fall in line for the Durero exhibit thinking the queue is to go inside the main museum. They only find out that they´ve been falling in line for the wrong exhibit after about two hours of endless waiting. The long queue I am referring to is the ongoing exhibit of the works of Durero - German artist. I'm not really familiar with his work but he's mighty popular with the tourist and maybe worth falling in line for. I try to visit the Prado on a Sunday as it is free. Of course, a lot of people want to take advantage of the free entrance to the museum so if you want to visit the Prado on a Sunday as well, try to go there the first hour so you don't have to fall in line that long.