Rethymno is a city in Greece on the island of Crete. It is the capital of Rethymno regional unit, and has a population of more than 30,000 inhabitants (near 40,000 for the municipal unit). Rethymno was originally built during the Minoan civilization (ancient Rhithymna and Arsinoe). The city was prominent enough to mint its own coins and maintain urban growth. One of these coins is today depicted as the crest of the town: two dolphins in a circle.