The Great Mosque of Djenné in Mali is the largest mud-brick building on earth. The current structure dates from 1907 and is a fine example of Sudano-Sahelian architecture. A type of architecture characterised by its adobe plastering & wooden scaffolding

Every year, around the month of April, thousands gather in the historic city to take part in the annual 1 day mud-plastering ceremony of the mosque. It’s necessary to repair the erosion on the building caused by the weather.

Via: https://twitter.com/IamMzilikazi