The Rustem Pasha Mosque, located in Eminonu, Istanbul, Turkey is hidden next to the Spice Bazaar. It doesn't look like much from the outside; however, the Iznik tiles inside are spectacular.
The lights suspended from the ceiling dangle mere feet from your head, almost enticing you to reach up and touch the underside of the glass. I could almost imagine a wick floating on oil over water, burning to illuminate the interior of the mosque.
For those that really want to know: Pentax K20d, DA 12-24mm at 12mm F5.6, 1/30 sec, 640 ISO