Above: external view of Ayasofya.  The four minarets were added over the course of its history under the Ottomans.

I took the photos at Ayasofya in Istanbul.  I thought it presented a kaleidoscopic view of the museum’s rich past: Ayasofya was a former Orthodox patriarchal basilica, later a mosque and now a museum in Istanbul.

Another view of the Mihrab in Ayasofya.  Built in the 6th century, it was once the greatest church in Christendom and was the largest cathedral in the world for nearly a thousand years, until Seville Cathedral was completed in 1520.