Walk along the ramparts of Québec City
During my holiday in Québec, I stayed mostly in Montreal but I also made a day trip to Québec City, the provincial capital. It takes ~3h to get there by bus (Orléans Express). I spent most of the day walking along the ramparts of Québec. Their construction began at the founding of the city by the French in 1608. They are now the only remaining fortified city walls in North America.