Guides by Lonely Planet - Explore city guides curated by experts.
Foursquare City Guide - Foursquare City Guide is a Free to use mobile application that will lead you to the perfect spot anytime anywhere around the world.
Foursquare 10 - Your ultimate city guide, in your pocket
Sygic Maps - The world's first online maps designed for travelers
Pretty Streets - Discover cities through customized walking itineraries
Flamyngo - Create a city guide with help of your friends.