Guadalajara (Mexico). 'Mexico’s second-largest city manages to dazzle despite being more a collection of pueblos than a great metropolis. This charmer gets under your skin with colonial buildings, awesome public spaces and wonderful craft shopping in the arty suburbs of Tlaquepaque and Tonalá.' http://www.lonelyplanet.com/mexico/western-central-highlands/guadalajara
Altun Ha in Belize existed by at least 200 BC, perhaps even several centuries earlier, and flourished until the mysterious collapse of Classic Maya civilization around AD 900. Most of the temples date from around AD 550 to 650, though, like many Maya temples, most of them are composed of several layers, having been built over periodically in a series of renewals.