Introduction to the Grand Duke Monastery of Radu: The Grand Duke Monastery of Radu is a historical monument of Romanian art and spirituality. It is a complex consisting of the ruins of a church, a drum tower, an intermediate seminary and a palace. The Drum Tower is 25 meters high and is the tallest drum tower in Bucharest. The architectural style of the Grand Ducal Church of Lado is beautiful, simple, unique and generous. It is a unique classic building in the city.