Courtesy of a lovable bunch of French web travel nerds, Subway Navigator is a site that claims to offer maps and travel directions for every subway in the world. It's certainly impressive: the collection of maps includes obscure subway systems such as Philadelphia, Helsinki and Caracas. The directions also work, although in some cases they involve unnecessary station changes. But still, heading onto the Moscow metro for the first time, we'd gladly add an extra transfer to make sure we know exactly how to get to that station. A nice effort.