Lost cities
Naachtun – Rediscovered in 1922, it remains one of the most remote and least visited Maya sites. It is 44 km (27 miles) south-southeast of Calakmul, and 65 km (40 miles) north of Tikal, it is believed to have had strategic importance to, and been vulnerable to military attacks by, both neighbours. Its ancient name was identified in the mid-1990s as Masuul.