Charles Platiau/Reuters
Mayotte is a beautiful French archipelago in the Indian Ocean.
The main players include Germany, France, and Britain (until Brexit finally takes place), with more recent additions including Croatia, Romania, and other states in eastern Europe.
However, hidden away on the fringes of the EU are islands and overseas territories that the majority of people have probably never heard of, despite belonging to the EU.
Scroll down to discover the most obscure places on the EU map.