Catania, Italy

Catania became the trophy of many empires throughout its history: from the Greeks to the Romans, from the Arabs to the Normans and Spaniards. However, the worst enemy of the locals is right next door - Mount Etna, the largest and most active volcano in Europe, which destroyed the city series of earthquakes and the lava flow in 1693. Carefully inspect the building in the Baroque style, which began to build after the eruption, and you will notice a very creative use of lava.