Visitors can test their courage on Shanghai skywalk

Visitors to a landmark skyscraper in Shanghai can put their nerves to the test by walking, leaning off of or sitting down on the outside of one of China's tallest buildings - 340.6 meters above the ground.

The Jinmao Tower, in the Lujiazui area of Shanghai's Pudong New Area, will launch a program on Thursday that allows visitors to walk on an open-air glass walkway outside the building's 88th floor.

The skywalk on the 420.5-meter-tall Jinmao Tower is about 60 meters long and just 1.2 meters wide, without a handrail. Visitors are harnessed to an overhead rail system that allows them to move about freely on the walkway.