A look at the most viewed sites on website discovery service StumbleUpon, recorded on May 20.

1. Inception Chair by Vivian Chiu
Photos of an Inception-like chair where ten chairs nested within one another create an optical illusion.

2. Proof - Mom Can Do It All
A photo of a mom holding a baby in one arm and catching a baseball with the other hand.

3. I Raff I Ruse
A photo of a 10-liter bottle of Coca-Cola with the caption “Meanwhile in America.”

4. Dominic Boudreault - home
A timelapse video of New York City in all its beauty created by Dominic Boudreault.

5. Superman VS Laden | Interesting Image

An edited photo of the White House Situation Room during the bin Laden raid with superheroes in the place of White House staff.