Portugal - 10 cents 2003 (Portuguese Royal Seal - AD 1142)
EUR 0.65
Greece - 2 euros 2013 (Founding of the Platonic Academy)
EUR 3.45
Greece - 10 drachmas 1986 (Democritus)
EUR 1.25
Ireland - 10 cents 2010 (Celtic Harp)
EUR 0.40
Germany - 20 cents 2017 (The Brandenburg Gate)
EUR 0.55