Visit a City - Create your personal travel guide
Tripadvisor - The Tripadvisor mobile app is available for the Android and iOS platforms. It can be used to create reviews of hotels, restaurants, and to chat with other travelers on Tripadvisor forums.
Modern Atlas - Discover where to travel
Wikitravel - This article is a Movie/TV Tour.
GetYourGuide - Get tickets to the most popular attractions while travelling
Foursquare - Foursquare is all about helping you find new ways to explore your city.