ohhh, Szczecin is imo shithole, but still better than being in slask or some shit
If u are into "pop music" (dont call me retard pls), u could travel to Open’er Festival 2019 in Gdynia, 3.07-6.07.
Here will be Travis Scott, The Strokes, Lil Uzi Vert, Diplo, G-Eazy, Lil Skies and a little more
Of course Auschwitz, kinda interesting place if u really wanna see how jews were "detained"
Also Krakow/Warsaw, both are good places to visit. Krakow got very gorgeous Main Square and alleys in which u can took very nice photos))
Warsaw, warsaw.. what i can say; u got everythink here i guess, also the monuments or museums or the stadium//dont go to Praga Polnoc
Maybe Hel? close to Gdynia, u can check on google maps, no idea how i can describe it
If u would be in centrum of Poland or some shit, then u could travel to Tatry and see some
beautiful views from Giewont/Rysy/Kasprowy Wierch
ahh i forgot, u could visit Wroclaw to see the old germany architecture