TAIPEI, Jan 25 (Reuters) - U.S. climber Alex Honnold scaled the Taipei 101 skyscraper without ropes or safety netting on Sunday, watched by thousands of cheering and waving fans as he clambered up one of the world's tallest buildings.

This is Burj Khalifa, the tallest building in the world. This masterpiece in Dubai is twice the height of the U.S.'s Empire State Building. And it's almost three times the size of the Eiffel Tower. So what if you took a tumble from the top?

Honnold made history in 2017 when he became the first person to ever climb El Capitan, and now he has his eyes set on another impressive feat.

Construction on what will be the world's tallest skyscraper is rapidly approaching a major milestone. Saudi Arabia's JEC Tower is racing towards 100 floors, making it a step closer to achieving its projected 2028 completion date.

On Saturday night, Alex Honnold, considered the greatest free solo climber in history, attempted to scale a structure called “Taipei 101”. The building formerly known as the “Taipei World Financial Center”. It is a 101-story skyscraper in Taipei, Taiwan.

• Bold attempt: American rock climber Alex Honnold is attempting to ascend a 101-story skyscraper in Taiwan — with no ropes or safety net — in an event broadcast live. CNN is on the scene, and we’ll bring you the latest, including commentary from “French Spiderman” Alain Robert.

The building, if confirmed, would be more than 1,000 metres taller even than the current tallest globally.