The buildings and architecture of Chicago reflect the city's history and multicultural heritage, featuring prominent buildings in a variety of styles. Most structures downtown were destroyed by the Great Chicago Fire in 1871 (an exception being the Water Tower). Chicago's architectural styles include Chicago Bungalows, Two-Flats, and Graystones along Logan Boulevard and . The Loop is home to skyscrapers as well as sacred architecture including "Polish Cathedrals". Chicago is home to one of the largest and most diverse collections of skyscrapers in the world.