Very interesting ruins and a lovely view of the surrounding countryside. It is an uphill hike to the pyramid and grounds, although there is handicapped parking near the site for those who can't make the climb up. The grounds are mostly flat at the top, with many bilingual signs for those that do not read Spanish well. Tickets were sold in the parking lot at a table, so be sure to get your tickets before you head up the hill.
With some areas still being excavated, one would assume that the museum will be evolving for many years to come. We enjoyed learning so much about life 2500 years ago.