Tikal and Chitzen Itzá are totally different from eachother but both have it all... including the mass tourism. Copán is also an extremely beautiful site, but is much less visited and therefore especially recommendable. Brilliant stelae of Yaxpac and all the other jaguars and rabbits...
[photo taken from www.viaggiareliberi.it]
just outside town Copán Ruinas Copan Copán Honduras