Download outline map of Poland (geojson format) : 
Poland.geojson (**)
Download polygon array of Poland map for "Google Maps" : 
Poland.txt
Bounding Box for Poland Map : ( 49.002047 , 14.122885 , 54.836417 , 24.145783 )
Wikipedia ID for Poland : Q36
Wikipedia SPARQL Query for Poland (population,elevation,area,lat,long, postal code,licence plate) : 
	
SELECT ?population ?elevation ?area ?latitude ?longitude ?postal_code ?license_plate
WHERE {
  OPTIONAL { wd:Q36 wdt:P1082 ?population.  } 
  OPTIONAL { wd:Q36 wdt:P2044 ?elevation. } 
  OPTIONAL { wd:Q36 wdt:P2046 ?area. } 
  OPTIONAL { wd:Q36 wdt:P281 ?postal_code. } 
  OPTIONAL { wd:Q36 wdt:P395 ?license_plate. } 
  OPTIONAL {  
    wd:Q36 p:P625 ?coordinate. 
    ?coordinate psv:P625 ?coordinate_node. 
    ?coordinate_node wikibase:geoLatitude ?latitude. 
    ?coordinate_node wikibase:geoLongitude ?longitude. 
  } 
} 
 Run this SPARQL Query on Wikidata Page (Click RUN button on the opened page!) 
Run this Query with SPARQL API 
ISO-3166 CODE for Poland : PL
Get Boundaries from overpass-turbo (OSM) with boundary box of Poland map
	
[out:json];
(
  relation["boundary"="administrative"]["admin_level"~"2|3|4"](49.002047, 14.122885, 54.836417, 24.145783);
);
out geom;
 Run this query on overpass-turbo (Click RUN button on the opened page!)
Get Boundaries from overpass-turbo (OSM) with place name (Poland)
	
[out:json];
(
rel["name"="Poland"][type=boundary];
rel["name:en"="Poland"][type=boundary];
);
out geom;
 Run this query on overpass-turbo (Click RUN button on the opened page!)
Notes:
- You can download geometry data for Poland in various formats (Geojson,KML,GPX,raw OSM data) by clicking export button on the overpass-turbo
- You can freely use the jpeg type map images you created on the "map cropping" page or downloaded from the "samples" pages.
- (**) 
Terms of Use for downloaded geojson files.