http://www.irelandaerialphotography.com/
http://www.worldmapper.org/index.html
http://www.nationalgeographic.com/
http://www.google.com/earth/index.html
https://www.cia.gov/library/publications/the-world-factbook/
http://www.getty.edu/research/tools/vocabularies/tgn/index.html
http://www.cso.ie/en/studentscorner/