Never heard of a layer-lapse? Me neither. From the Vimeo page, filmmaker Julian Tryba explains:

Traditional time-lapses are constrained by the idea that there is a single universal clock. In the spirit of Einstein’s relativity theory, layer-lapses assign distinct clocks to any number of objects or regions in a scene. Each of these clocks may start at any point in time, and tick at any rate. The result is a visual time dilation effect known as layer-lapse.

Turn up your speakers, set to full screen, and enjoy!