You read that right -- the Chocolate Train lives up to its name. This Swiss train line starts out on the Swiss Riviera, running from Montreux to Gruyères and on to Broc. Montreux is surrounded by a sea of vineyards, while Gruyères is home to a superb cheese-making operation renowned the world over. There are also castles and other historic sites at both locales for families to explore. But Broc is where you'll be able to satisfy your sweet tooth, at the Cailler-Nestle chocolate factory. See the Alps and sample some sugary goodness -- what's not to love?