Noun
the style of architecture developed in the Byzantine Empire developed after the 5th century; massive domes with square bases and round arches and spires and much use of mosaics
Source: WordNetIn the East, Byzantine architecture developed new styles of churches, but most other buildings remained very close to Late Roman forms. Source: Internet
Their best examples of Byzantine architecture are their churches, Stilo's La Cattolica and Rossano’s San Marco Evangelista. Source: Internet