These GIFs of endless time-loops moving across cityscapes from Shanghai-based artist Fong Qi Wei are astonishingly beautiful. But they also offer an interesting way to think about time, letting the viewer see the past, the present, and the future all at once.

The GIFs are part of a series he's working on called Time in Motion based on an earlier series he did of still images, Time is a Dimension. "I use the GIF format (don't ask me how it is to be pronounced!) to create a looping animation that shows a single landscape / seascape but with a constant shimmer of … time," he explains on his website.

Here are a couple more of our favorites. You can check out the gorgeous, hi-res versions, over at his website.

Images: Fong Qi Wei