Geography
CIA World Factbook (https://www.cia.gov/the-world-factbook/)
DeMatha Library Geography Games (Quiz Bowl Challenge)
List of European capital cities (https://www.englisch-hilfen.de/en/words/countries_eu.htm)
National Geographic (https://www.nationalgeographic.com/)
Seterra Online (https://online.seterra.com)
US Geological Survey (https://www.usgs.gov/educational-resources/geography-education)