De La Fratta or Cesta is one of three peaks which overlook the city of San Marino. The other two are Guaita and Montale. The tower is located on the highest of Monte Titano's summits. A museum to honor Saint Marinus, created in 1956, is located in this tower and showcases over 1,550 weapons dating from the medieval era to the modern day. It was constructed in the 13th century on the remains of an older Roman fort. Just like other two towers in San Marino, it is also depicted on the national flag.
References:The Church of St Donatus name refers to Donatus of Zadar, who began construction on this church in the 9th century and ended it on the northeastern part of the Roman forum. It is the largest Pre-Romanesque building in Croatia.
The beginning of the building of the church was placed to the second half of the 8th century, and it is supposed to have been completed in the 9th century. The Zadar bishop and diplomat Donat (8th and 9th centuries) is credited with the building of the church. He led the representations of the Dalmatian cities to Constantinople and Charles the Great, which is why this church bears slight resemblance to Charlemagne's court chapels, especially the one in Aachen, and also to the Basilica of San Vitale in Ravenna. It belongs to the Pre-Romanesque architectural period.
The circular church, formerly domed, is 27 m high and is characterised by simplicity and technical primitivism.