Complex sentence: Due to Havana's almost five hundred year existence, the city boasts some of the most diverse styles of architecture in the world, from castles built in the late 16th century to modernist present-day high-rises.
Split into simpler sentences: Due to Havana's almost five hundred year existence, the city boasts some of the most diverse styles of architecture in the world. From castles built in the late 16th century to modernist present-day high-rises.