If only the towering walls of Monts Castle could talk! But seeing they can't, check if tours are available to hear a few of its tales instead.
This Le Locle fortified complex is a good place to kick off your day of sightseeing. There's plenty to see close by, such as International Museum of Horology, Vue des Alpes Pass, and Moulins Souterrains du Col-des-Roches. Wander around at your leisure at Monts Castle before hitting up these other fine sights.