Ostrava is the third-largest city in the Czech Republic, located in the northeastern part of the country. It is known for its rich industrial history, particularly in coal mining and steel production. The city has transformed over the years, shifting from heavy industry to a more diverse economy that includes services and technology. The city is also home to several cultural attractions, such as the Ostrava Museum and the National Cultural Monument of Lower Vitkovice. Additionally, Ostrava hosts various festivals, including the Colours of Ostrava, which celebrates music and arts, attracting visitors from around the world.