Museum Embassy of the Free Mind in Amsterdam

You're standing on the Keizersgracht, at number 123, in front of the House with the Heads. Look at the façade. Six stone heads are looking down at you. They're Roman gods: Apollo, Ceres, Mercury, Minerva, Bacchus and Diana. Pay special attention to the two beside the front door. On either side stand Mercury, god of trade, and Minerva, goddess of wisdom. In the seventeenth century, that was a clear message: a wise merchant lives here.