What is the fine-grained topic of the following text: Jay has worked on many prominent projects in the Middle East, Europe, and the United States; including the expansion of the Prophet's Mosque (al-Masjid al-Nabawi) in Medina; the expansion of the Grand Mosque in Mecca (Masjid al-Haram); the Abraj al-Bait Clock Tower also in Mecca; the movable minbar for the Kaaba; the International Medical Center in Jeddah; the Data Darbar in Lahore and the New Senate House in Rawalpindi, Pakistan; the Ismaili Centre in London; and the American Institute of Mathematics Research Conference Center in California. Only return the topic.
Jay's architecture projects globally.