His first inclination was to make it a temple of Pachamama, but in the end this was considered too "Catholic" so Anglicanism was the solution, as it does not presuppose any particular belief system.
Your new-look Hagia Sophia.
"This should improve the Turkish tourist industry no end," explained the good man. "Both Christians and Muslims love helter-skelters, crazy golf, and artists' installations. The spiritually nourishing sight of an imam shouting 'Wheee!' as he slides down the helter-skelter will do a lot for ecumenism."
Historically, the Hagia Sophia was built as a Christian cathedral, but in 1453 Mehmed the Conqueror, tired of seeing idols of Pachamama, artists' installations (this is what artists make when they can't do art), and tango-ing priests, had it turned into a mosque, and everything went quiet for a few hundred years. Later it became a museum. However, a glorious future now dawns.
"We're hanging up our washing on the Sophia line!"
However, some critics have said that this is simply a case of Turkey voting for Christmas. We shall see.