A combo photo shows Downtown Dubai after fireworks and by 2:30am.

Burj Khalifa wowed over 2 billion people across the globe with a breathtaking pyrotechnic show on the world’s tallest building to ring in 2020. In a mesmerising story, the Burj Khalifa was transformed through animation, light, sounds and a synchronized fountain show, taking viewers on a journey at the onset of a new decade.

The highly anticipated event welcomed over one million onlookers in Downtown Dubai, Emaar's flagship mega-development, to witness 15,000 perfectly choregraphed fireworks showcasing 48 pyrotechnic patterns, signalling the start of a new decade.

But have you ever thought how the bustling Downtown Dubai was restored to its normal look with no dirt, empty plastic bottles and wrappers?

Emaar shared a video of the staffers and volunteers who were briefed about the event and how to tackle the outcome as we leave behind a mess on the roads after the fireworks.

Emaar said on Twitter, “This is the story of one of the heroes behind #EMAARNYE2020. Watch how @MyDowntownDubai was restored by 2:30AM on the same day.”

These unsung heroes armed with nothing else but brooms took on the task of giving a clean look to Downtown Dubai by 2:30am.

The heartwarming video showed every staffer was tasked to take care of the smallest facts to restore the most visited road in Dubai.

Social media users have heaped praise upon the heroes.

Twitterati @Abdulx said, “Thanks to the real heroes of Dubai 2020❤️”

@hashimobaid1 said, “Thank you for the great job our heroes 👏 👏 👏”

@DC_Sensei said, “These are the real ones that deserve a celebration”

@RajaAliShan1: Hundred of Security Standing on Feet for hours to manage everything but they aren't heroes. Get abused by Customers for stopping them over violations but still we always smile and do our duty. We will always do our best. Happy New Year Everyone please come again next year. God Bless…”

@Shalabh50420960: Awsome… Hatss off to unsung Heroes of Emaar who made d event Successful 👌”

To mark the dawn of a new decade the show on Burj Khalifa was conceptualized by Emaar.  Every second of the show was as enchanting as previously billed and incorporated fireworks, animations on the Burj Khalifa LED façade, music compositions and a beautiful fountain show.

All pyrotechnic effects were specially selected and manufactured for the show, ensuring the unique fireworks designs and effects were truly one-of-a-kind.