Behind the school, away from the noise of the street and the prying eyes of the curious, hides a small white church. The small church was built in 1787 by the voivode Nicolae Petre Mavrogheni and his wife as a thank to God for their daughter getting rid of an incurable disease.

It is said that Voda Mavrogheni led an adventurous life. He liked to do himself justice, to roam the Capital city long and wide in disguise in such a way that he could not be recognized and so that he could freely observe how the country's affairs were going.

Contrary to this behavior, Voda Mavrogheni was extremely extravagant for those times. He liked to go for a walk in shiny carriages pulled by four deer with golden horns or accompanied by a real procession. Of course, his lifestyle did not attract the sympathy of the boyars who did not hesitate to call him "the trick of nature" or "crazy".

However, the people loved him very much for his involvement in creating a better life for them. On his estate, spread over 16 hectares, Voda Mavrogheni built not only the above-mentioned church or trade school but also a spacious hospital (today's Philanthropy Hospital, 50 m away from the Church - you can admire the beautiful architecture of it), a public fountain where water was collected through ceramic pipes from Cretulesti Springs, a printing house, a beautiful kiosk for quiet hours in the afternoon, a cattle shed, the second fair held weekly after that of Mosilor which stretched on the current land on which today are built the Geological Institute and the Museum of the Romanian Peasant.