It's rather an easy KesterTester this week, although you can't get this piccie in this form today.
Congratulations to JerryBudapest on getting last week's KesterTester03 - although he located the church using google street view - that's cheating, Jerry! (good thinking though).
It is the church on Nagymező utca, Szent Theresa of Avila, Budapest VI.
But why can't you get this photo today? (At least, I don't think so, I'd have to check it in the right light.)