PTW Performance Center is a storage facility repurposed into PTW's training center, and venue for its Underground series of events. In its typical setup for such events, it fits a standard wrestling ring and about 150 seats for the audience. The back wall (visible to the hardcam) features colorful decorations made of wooden cargo pallets and graffiti.
The facility is located inside the Międzynarodowe Targi Katowickie (Katowice International Fair) grounds. The Fair is defunct since 2011, and leases its buildings to various commercial tenants. While named after Katowice, the grounds are actually located in Chorzów, a neighboring city in the Silesian metropolis. It's easily reachable by bus from Katowice's main railway station.