sentences:  The northeastern Petén region contains a good number of other significant Maya sites, and Nakum is one of the three sites forming the Cultural Triangle of "Yaxha-Nakum-Naranjo".Nakum is approximately to the north of Yaxha and some to the east of Tikal, on the banks of the Holmul River.Its main features include an abundance of visibly restored architecture, and the roof comb of the site's main temple structure is one of the best-preserved outside Tikal.