Tourcaster hosts the largest online audio tour collection, covering six continents and 57 cities. Tourcaster allows customers to download guided tours of historic and cultural sites around the world. Each downloaded tour comes with mp3 files that correspond to a numbered map, giving visitors detailed directions to points of interest. To give travelers the freedom and flexibility to see the main historic sites, at their own pace, allowing them to get the most out of their vacation. Tourcaster also features audio guides, that are informational pieces on a particular site, city, or region. These are usually priced lower or are even free, and are not accompanied by a map.