The appealing medieval town of Lubeck is self contained, separated from newer parts of the city by a canal and river that once doubled as a moat. Within this precinct are some 1300 houses, churches, and courtyards protected as a UNESCO World Heritage site. Local lore has it that Lubeck is also the original home of marzipan, a serendipitous discovery during a siege, when the town ran out of flour and ground up nuts to use in making a bread substitute. Hot tip for those with a sweet tooth – Café Neideregger is said to make the best, and they have been doing so since 1806.