We stumbled upon this beautiful monastery from the early 18th century while having lunch at Caru' cu Bere restaurant in downtown Bucharest. It's on a small street, with nuns attending the candles and shrine. It was one of those finds that can't be anticipated or overestimated. A splendid afternoon. http://en.wikipedia.org/wiki/Stavropoleos_Monastery
The tower is from modern times, but it fits its setting and is a beautiful addition to the site.