Take a look into London's past
The AA London Map 1891 application brings you a detailed map of London circa 1891, giving you a glimpse of what London looked like in the past.
You can use the standard pinch gestures to zoom in and out. A double tap on the map will also zoom in by a set distance.
A tools menu will swing open if you tap on the top right icon in the map view, allowing you to perform searches, find your current location on the map or customise the app settings.
The app also has a built-in help system. This can be found by tapping on the (i) icon at the bottom left of the app.
AA London Map 1891 for iPhone