#Monuments: First #military #airfield & first #submarine
#Monument: First #submarine in #RussianEmpire #Gatchina #Russia
#Monument: First #military #airfield in #RussianEmpire ✈
#Palace park. Silvia #park entrance. #Gatchina, #RussianEmpire,
#Emperor Nicholas II and #Empress Alexandra Feodorovna on the