During Heritage Days, doors open that would otherwise remain closed. A whole new world awakens. From freemasons and pirates to those of the new empires. Visit the monuments of your choice and join one of the city walks. Or enjoy the music programming on Sundays. Each year there is a changing theme, within the framework of this theme various activities are organized throughout the weekend.
Check out www.monumentenindordrecht.nl for a listing of all open monuments and the program.