Have you noticed the stone tablet on the Amsterdam canal houses? Are you curious why are they created and what is the meaning of the images? This app will help you get oriented in the exploration of the gevelstenen and the stories behind them.
All the content are offline, so no worries about your data consumption. You can zoom in and tap to see more details.
The data used here is from http://www.livius.org/dutchhistory/amsterdam/amsterdam_gevelstenen1.html They also have more information about the stone tablets.