H!story App play online

The history app aims to show historical images and information of a place. Imagine standing at a place that was relevant back in time, but it has been lost due to new roads/buildings. Only the people who lived there might know about it, but this may get lost with the people.
The app aims to allow people to submit this information and it gets displayed on the app. You won't ever come back from a vacation thinking "Oh! I had no idea that I was at a place of historical significance!"