The book tracks the Gothic features of the pointed arch to the Dome of the Rock in 7th-century Jerusalem and the ribbed vault to the Great Mosque of Córdoba in 10th-century Al-Andalus.[1] The windows of the Saint Denis basilica are described as being traceable from the Muslim world via adoption in the wealthy Italian port of Amalfi, then Monte Cassino Abbey and Cluny Abbey.[2] In Venice, another Italian port that traded with the East, the influence went beyond architecture, with local women wearing garments similar to a niqab.[2] Sir Christopher Wren, best known for St Paul's Cathedral in London, is cited for his statement that Gothic architecture should be called Saracen architecture.[2]