slideview enables interactive exploration of (raster)images side-by-side by providing a mouse-controlled slider. This can be especially useful for comparing images of the same region at different time ...

Drag the slider across each image to see how the areas appeared before and after the firestorm: The set above shows businesses on either side of one of Gatlinburg’s main arteries.

But the side-by-side images of Friday’s ceremony alongside the 2009 inauguration of President Barack Obama show a significantly smaller crowd on the National Mall for Trump than for Obama.