These systems include earthen domes and vaults.

Earthen masonry domes, Iran (F. Naeim)

Earthen masonry domes, Iran (F. Naeim, World Housing Encyclopedia Report 104)

Collapse of earthen buildings with domed roofs in the 2003 Bam, Iran earthquake (F. Naeim)

Collapse of earthen buildings with domed roofs in the 2003 Bam, Iran earthquake (F. Naeim, World Housing Encyclopedia Report 104)