This yellow cat who can travel at the speed of light was created after a typo occurred in a 4chan IRC chat room nicknamed "speedychat."

This nonsensical image of a cat flying through space on a musical keyboard inspired a slew of YTMND sites, image macros and YouTube videos.

This space-obsessed robot from the first-person puzzle game Portal 2 became such a hit online that it even made its way into a mod for the game Elder Scrolls V: Skyrim.

The word "regret" is not in the Internet's dictionary.

Pixel Art: This strange bread-cat hybrid originally came from a Japanese children's book before making its way to the English-speaking web through the GIF animation hubsite YTMND.