Scratch & Sniff Vintage Maps

Urban Scratchoff is a clever way to compare vintage aerial imagery of New York with modern day imagery of the city.

At first glance Urban Scratchoff looks like a normal interactive map of New York. However if you click and drag on the map you can scratch away the modern aerial imagery to reveal historical aerial imagery of New York, from 1924, underneath.

You can even switch the layer order of the two sets of aerial imagery. Place the modern aerial map of New York on top and you can scratch the map to reveal the historical imagery below.

BTW - you can try sniffing your display screen if you want but I wouldn't advise it.