A series of doorways in the eastern multi-storey room block of Aztec Ruins pueblo, New Mexico: note the high sills to reduce draughts & conserve heat.

- Image ID: JKJ0NM
Mick Sharp / Alamy Stock Photo
Image ID: JKJ0NM
A series of doorways in the eastern multi-storey room block of Aztec Ruins pueblo, New Mexico: note the high sills to reduce draughts & conserve heat (the front sill has been damaged). The pueblo at Aztec was first built c AD1125 as a Chacoan outlier by Anasazi people associated with Chaco Canyon, some 50 miles to the S and connected by a Chacoan road. After abandonment around 1200, the site was reoccupied (c AD1225-late 1200s) by other Pueblo people from Mesa Verde some 40 miles to the NW.
Location: Aztec Ruins National Monument, Farmington, San Juan County, New Mexico, USA