A Nestlé brand since 1929, Maison Cailler chocolate has been made in Switzerland since 1796 when François-Louis Cailler invented the brand (it's the oldest extant Swiss chocolate). Located in the town of Broc, the Maison Cailler Factory Tour has won the Trip Advisor Certificate of Excellence twice—in 2012 and 2014. The "Experience" is a 1 1/2 hour tour around purpose built dioramas of the history and legends of chocolate from the Aztecs to today (check out the smoking Aztec idols). And if you make it to the end you get to taste some chocolate in the free tasting room (all you can eat, though you can't take it with you), although as you wind your way through the exhibits you can't help take in their delicious, wafting scent that pervades the building and, in fact, the whole town. Of course, there's also a store at the end so you can stock up on chocolates packaged ready for a flight home for friends and family.