Poland

PL-1934958 (2023)

PL-1942794 (2023) Mine Memorial Museum

PL-1855771 (2022)

PL-1894305 (2023)

PL-1813025 (2022)

PL-1847467 (2022) This was built by Germany during their occupation of Poland during WWII.

PL-178551 (2021)

PL-1775977  (2021)

PL-1755006 (2021)

PL-1773355 (2021)

Postcrossing: PL-1709793 (2020)

Postcrossing: PL-1659616 (2020)

Postcrossing: PL-523079 (2012)

Postcrossing: PL-440467 (2012)

Postcrossing: PL-452382 (2012)

Postcrossing: PL-371925 (2012)