Known for being the third largest rotunda dome in the world, The Mosta Dome is probably the most extraordinary church in Malta, having a massive rotunda, with an internal diameter of 37.2 metres. The Mosta church is dedicated to the Assumption of Our Lady, and it was built in 1860, in total it took 27 years to be built. During the Second World War the church was almost destroyed when, during an air raid, a 200kg bomb fell through the dome without exploding. All the 300 people attending morning mass were left unharmed. On the 9th April, 1942 the detonator was removed and a replica is now on display inside the church as a famous tourist attraction. Mosta’s festa, that of St. Mary or the Assumption of Our Lady is celebrated annually on the 15th of August.