Mapbox is a downloadable tool that allows you to create maps for mobile apps, websites or other sorts of projects. These maps have many different styles, but one of the purposes of the app is to show maps without clouds. One tends to underestimate this, but it is an important fact to now the actual appearance of a map.
With Mapbox you can design maps for travel apps, but it basically works for any app that requires location services. This tool can retrieve information from social networks like Pinterest, Foursquare, and it can visualize data from GitHub.
The tool comes in two versions, one that you can use online, which gives you the basic components for maps edition, and the Mapbox Studio, which gives you the extended features to create maps.