The self-guided tour was engaging, immersive, and impressive. The best part is the tasting room…read morewhere you can have unlimited samples of their chocolates. Bring some napkins so you can wipe off melted chocolates from your hands. The quality is exactly what you'd expect from Switzerland -- smooth, rich, and dangerously easy to overindulge. You also get to see parts of the actual production line, which is fascinating if you enjoy seeing how things are made. It's clean, efficient, and gives you a new appreciation for what goes into each bar. The gift shop is well-stocked (yes, we bought way too much), and prices are actually reasonable considering the quality. Great place to pick up souvenirs that people will genuinely be excited about.

This was one of the highlights in the Switzerland trip. Callier has a dedicated train to the…read morefactory where they started in 1819. Yes, not a typo, 1819! It's definitely worth seeing the facotry, but the self guided tour was not interesting. They provided a token at customer service for storing your bigger bags/jackets in locker. The samples were abundant and very generous. Fun to spend 2 hours there. By the time we finished the tour, we were full and couldn't eat lunch. Go when you got the Swiss pass.