Islamic Architecture Tutorial - An on-line tutorial from San Jose State University focussed on the architecture of the Ottoman Empire, and other buildings with great significance in Islam, organized on a timeline.
Islamicpix - Adnan Alavi presents photographs of mosques around the world, with a few historical notes.
Mosque - Tore Kjeilen explains the significance of the mosque to Muslims, its history, development and use, in an article for the Encyclopaedia of the Orient.
Mosque of Amr Ibn El-As - The Egyptian Tourism Ministry provides an illustrated history and description of the oldest mosque in Egypt, founded in 642 AD and rebuilt several times subsequently.
Mosques - Great Buildings Online provides images and information on famous mosques in Turkey, Syria and North Africa.
Mosques Around the World - IslamiCity presents photographs of outstanding mosques, both historic and modern, arranged by continent.
Saigon's Mosque - Photographs and brief history of this mosque built in 1935 by Indian Muslim traders.
Sinan Mosques in Istanbul - Chuck Newman's photographs of his tour around the mosques designed by the famed 16th-century architect.
Wikipedia: Great Mosque of Djenné - Information on the world's largest mud-brick building, in Mali. Sections on its history, design and significance, plus pictures.
Wikipedia: Suleiman Mosque - Illustrated history and description from the online collaborative encyclopedia of this grand mosque in Istanbul, built on the order of Suleiman I to a design by Sinan which reflected the nearby Hagia Sophia.