Yaxhá as Ruins near The Wall
Sam and Kaulder climb a ruined pyramid and see their first view of The Wall.
Monsters Filming Locations
Monsters was filmed in Guatemala & the United States of America
Quick Spot as Abandoned Texaco
Kaulder and Sam use the telephone in a gas station in the evacuation zone and then have an encounter with the monsters before being rescued by the military.
Source: Making of