A whimsical example of Dutch Renaissance style, this 1622 canal house has a beautiful step gable with six heads at door level representing the classical muses. The building was recently renovated, and it's now open to the public as a 'centre for free and contrarian thinking,' with a library focused on Western spiritual and philosophical texts, plus exhibitions, concerts and debates.
FYI, the famous heads out front are images of Apollo, Diana, Ceres, Bacchus, Minerva and Mercury. Renowned architect Hendrick de Keyser and his son Pieter designed the building.