which still dominates the city's skyline from its elevated vantage point. Markets and commercial buildings The Mamluks, and the later Ottomans, also built wikalas (caravanserais; also known as khans) to house merchants and goods due to the important role of trade and commerce in Cairo's economy. The most famous and best-preserved example is the Wikala al-Ghuri, which nowadays also hosts regular performances by the Al-Tannoura Egyptian Heritage Dance Troupe. The famous Khan al-Khalili is a famous souq and commercial hub which also integrated caravanserais. Another example of historic commercial architecture is the 17th-century Qasaba of Radwan Bay, now part of the al-Khayamiyya area whose name comes from the decorative textiles (khayamiyya'') still being sold here. Preservation status Much of this historic area suffers from neglect and decay, in this, one of the poorest and most overcrowded areas of the Egyptian capital. In addition, as reported in the Al-Ahram Weekly, thefts of Islamic monuments and artifacts in the Al-Darb al-Ahmar district threaten their long-term preservation. In the aftermath of the 2011 uprising theft increased among historic monuments and a lack of zoning enforcement allowed traditional houses to be replaced with high-rise buildings. Thefts and illegal constructions have since decreased, but environmental problems remain. Various efforts to restore historic Cairo have been ongoing in recent decades, with the involvement of both Egyptian government authorities and non-governmental organisations such as the Aga Khan Trust for Culture (AKTC). In 1998 the government launched the Historic Cairo Restoration Project (HCRP) which aimed to restore 149 historic monuments. In the following years numerous restorations were completed under the supervision of the HCRP in the area between Bab Zuweila and Bab Futuh, especially around al-Mu'izz street. A restoration of Bay al-Suhaymi and the Darb al-Asfar street in front of it was also completed in 1999 by independent Egyptian conservators with funding from the Arab Fund for Economic and Social Development, a Kuwaiti organisation. By 2010, about 100 of the 149 monuments designated by the HCRP had been restored. The HCRP has also been criticized, however, for creating an open-air museum geared towards tourists while imparting few benefits on the surrounding community. Around the same period, another initiative launched by the AKTC focused on revitalizing the Al-Darb al-Ahmar neighbourhood following the construction of the nearby al-Azhar Park. This project aimed for a more bottom-up approach to improve the community's urban fabric and the socioeconomic situation of residents, as