The roundel was first developed for London Underground a century ago. It is still used by Transport for London today. The roundel is one of the most recognised and imitated logos in the world.

Back when I helped found the world's first commercial on-line weather service--The Weather Underground--back in 1995, we adopted a simple and colorful rainbow logo that expressed our mission well ...

Long before dinosaurs, something was digging intricate homes and roads underground. While life on Earth 240 million years ago flourished in the seas and on land, the underground worlds discovered ...

Need for Speed: Underground Logo Surfaces. April 12, 2013 by Ian Miles Cheong. ... It combined the open world setting of Burnout Paradise with the chase mechanics of the original Most Wanted.