SmartGuide turns your phone into a personal tour guide around Utrecht. With its religious core, this city is truly one of the most unique and charming places. The Domteron offers amazing views of the cities and numerous canals throughout. Be sure to check out the Castle De Haar and St. Martin’s Cathedral while you are there! Whether you are looking for a self-guided tour, audioguide, offline city maps or you just want to know all the best sightseeing spots, fun activities, authentic experiences