Nerve-wracking moment skateboarders perform idiotic stunt on top of Scape Swanston, Melbourne

Horrifying footage has captured the moment skateboarders diced with death while performing tricks on top of a 47 storey skyscraper.

In the video posted to Reddit on Wednesday, the pair was seen skating on the very top of the Scape Swanston building in Melbourne's CBD. 

'Just casually skateboarding on top of a 40 story building,' the post read. 

In the footage, the daredevil duo were seen risking their lives and the safety of innocent people on the ground.

One of the two practiced tricks, while the other filmed his mate as he performed his senseless shredding. 

As the video continued, there was surprisingly no sign of building security, so the two casually continued their alarming antics.

The Scape Swanston building doesn't have any safety railings, no doubt adding to the dangerous thrill.

Social media users were quick to condemn the skateboarders and their dangerous antics.

'This sh*t p*sses me off. If you want to be a moron and kill yourself, fine by me', one wrote.

'But DON'T risk falling off a building on to the people below and DON'T risk a heavy object like a skateboard falling off and killing people below. These c***s should be arrested.'

Shocked office works spot two stupid skateboarders on top of Melbourne skyscraper

A second added: 'At that height don't think it even needs to be a heavy object to kill people below. The velocity of something as small as a watch would be like a bullet.' 

Another commenter was concerned about innocent people on the ground. 

'Imagine just minding your business trying not to sit in bird sh*t outside the museum and a f***in skateboard from the skies above just straight up sends you to heaven,' they wrote.