Masonry without any form of reinforcement.
Unreinforced brick masonry construction (covered by plaster), Indonesia (J. Bothara)
A typical unreinforced masonry building from the beginning of 20th century, Halifax, Canada (S. Brzev)
Unreinforced stone masonry, Switzerland (T. Schacher)
Unreinforced brick masonry damaged in the 2010 Maule, Chile earthquake (S. Brzev)
Unreinforced adobe masonry, Peru (left-N. Tarque and right-A. Charleson)
Unreinforced stone masonry building, Morocco (C. Scawthorn)