The guys who illegally scrambled up the Shanghai Tower last year are back, and this time they scaled the Shenzhen Tower. At just over 2,000 feet high, Shenzhen Tower is the second tallest building in the world.

The anonymous climbers are known only by their YouTube name, on the roofs, and clearly fear nothing. The duo took to the tower under the cover of darkness during the Chinese New Year, hoping to minimize the amount of guards they may encounter while sneaking into the unfinished financial building.