3/5 Mazowiecka Street - Srodmiescie Polnocne

3/5 Mazowiecka Street. A plaque near the entrance to the sewer, which was an important transport route between Śródmieście and the Old Town.

Maciej & Piotr Janaszek-Seydlitz photos Joanna Janaszek-Seydlitz translated by Daniel Mierzwicki