The Maison à Pondalez on Grand'Rue is the finest surviving example of a distinctive type of medieval townhouse unique to Morlaix. Built in the 15th century for a prosperous merchant, it takes its name from the central wooden spiral staircase — pondalez in Breton — that rises through a covered courtyard from ground floor to eaves, with open-sided galleries at every level. The effect from the ground floor looking up is of a wooden lantern, the light falling through the galleries above.
The house is open to visitors and the interior is genuinely striking: the staircase is still intact and the galleries retain their carved wooden balustrades. The ground floor was originally a shop; the upper floors were living quarters arranged around the central well of light. It's a small museum of Morlaix domestic life, with some furniture and objects from the period.
Located on Grand'Rue in the old town, the Maison à Pondalez is an easy ten minutes from the train station. There's a small entry fee; opening hours vary by season. A second example, Maison de la Duchesse Anne, is open intermittently nearby.