a normal xyz 20mm calibration cube but with a city on the inside —

Founded a normal xyz 20mm calibration cube but with a city on the inside models & stl files for printing
sculpture
Perogo1
Ender 3 X pulley cover
Svechinskaya
Floating TableTop
Seabird HH
Battle ship
Jayden Lee
UltiSport Shoe
fastgrady15
Ikea Hanging Lampshade
flankmostrum
Butterfly Sword
rtgillen
Hanging Sloth
rmladler