I was allowed to go down two short tunnels, one led to part of the underground drainage (the end of it was blocked so I didn't get to look at the drainage itself). Overall it seems the same. From the top of the pyramids in the back, we could look at the remains of the palace area, but it was roped off and I was told that the government was gearing up for archeological work there.The guide I was with talked a lot about how precise the courts were leveled to drain rainwater away and how after all these centuries the drainage still works perfectly.
