The Roman Wall is the popular but incorrect name for an early Ottoman-era architectural monument in Sofia, the capital of Bulgaria. Part of a 16th or 17th-century Islamic religious building, it now stands in the middle of a small marketplace in the Lozenets neighbourhood.
The Roman Wall is a rectangular structure of straight rows of bricks and stones. It exhibits a characteristic Ottoman construction method of surrounding the large cut stones with sets of bricks. The wall is situated with an east–west orientation and features two windows, with a mihrab niche in between. A notched brick cornice decorates the top of the wall.
The Roman Wall was built in the 16th or 17th century, the time of the Ottoman rule of Bulgaria. The wall's exact purpose is unclear, though it is agreed that it performed an Islamic religious function. It may either be the preserved part of an eminent Ottoman Turk's tomb, or it may have formed part of a namazgâh, an open-air religious structure where the imam would perform a prayer for those embarking on the Hajj.
In the late 19th century, after the reestablishment of the Principality of Bulgaria in 1878, the Old Wall remained as a lone marker in the abandoned Turkish graveyard. In 1957, the wall underwent a reconstruction and was enlisted as a monument of culture.
References:The Broch of Clickimin is a large and well preserved, though somewhat restored broch near Lerwick. Originally built on an island in Clickimin Loch (now increased in size by silting and drainage), it was approached by a stone causeway. The water-level in the loch was reduced in 1874, leaving the broch high and dry. The broch is situated within a walled enclosure and, unusually for brochs, features a large 'blockhouse' between the opening in the enclosure and the broch itself. Another unusual feature is a stone slab featuring sculptured footprints, located in the causeway which approached the site. Situated across the loch is the Clickimin Leisure Centre.