More than 50 tourist attractions in Moravian-Silesian Region is for free during September and October 2020.
In Ostrava you can visit New City Hall Viewing Tower, Dolni Vitkovice, Landek Park, ZOO Ostrava, Silesian Ostrava Castle, The House of Art and Moravian-Silesian Railway Museum. And you won't pay the entrance fee. The Region wants to support the tourism after covid-19 pandemic.
A map with all attractions in the whole region you can check here.