I just used Auto Color and then a few percent of desaturation. Its a really nice shot. I would also address the perspective problem if it was my image. But the problem was the oversaturation of color.
Cool picture I like the angle you chose. I think its little much on the yellow side and Bynx did a good job correcting it but I also kina like the yellow used in yours it gives a different mood. I did a merge with Bynx and yours with a 25% opacity on your layer to keep some of that yellow and then used the selective color mask and adjusted white and grey.