Similar to the Before and After posts of how Columbus has been changing, the link below from the site Urb-I, has hundreds of before and after photos of streetscape change in a host of world cities. Columbus itself is not included, but perhaps that can be changed as the site allows anyone to submit images.
This map shows the location of every bike share system in the world. Not only that, but you can zoom to each city’s individual stations, look at usage graphs, run animations and more. Columbus will be getting a bike share system that opens in July, so expect it to show up on this map in the coming months!