Some of the most striking architectural details on the Swahili coast are the wooden doors set into otherwise plain coral-stone houses. The motifs vary by region — chains on Lamu and Zanzibar, lotus blossoms further south, Quranic calligraphy in the merchant houses — but the carving is always elaborate, the timber usually mvule or Indian teak, and the brass studs sometimes thumb-sized.
The best places to see them are Stone Town in Zanzibar, Bagamoyo, and the older streets of Kilwa Kivinje. A small number of master carvers still work in Stone Town and Lamu; visiting a workshop is straightforward if you ask in the right shop. Several books document the door styles in detail, including The Swahili House by Mark Horton and Catherine Mitchell.