What is the fine-grained topic of the following text: The eighth Circle of Light festival was held at The Museum of the Great Patriotic War, and six other venues, namely the Krylatskoye Rowing Canal, the parks of Tsarytsyno Palace and the Kolomenskoye Estate, Teatralnaya Square, the Mir concert hall and the Digital October center. Only return the topic.
The eighth Circle of Light festival venues