Coming soon: The world's first 360-degree infinity pool

• The first 360-degree infinity pool has been announced as a project in London
• There's a new concept for a four-sided infinity pool atop a London skyscraper that will be accessible via a submarine-esque door
• The pool will be located at the top of a 55-storey building
• But with similar projects announced in London and Dubai, which will be completed first?

Imagine heading to the roof of your building to get to your pool and having to go through a submarine-style entrance with a rotating air-tight spiral staircase which rises from the pool floor when you want to enter or exit. But is that even a real thing? Apparently, it is.

London has recently revealed an exciting new project. The world's first 36-degree infinity pool with views of the city's impressive skyline. 

"We faced some quite major technical challenges to this building, the biggest one being how to actually get into the pool," said Alex Kemsley, founder and technical director of Compass Pools.

"Normally a simple ladder would suffice, but we didn't want stairs on the outside of the building or in the pool as it would spoil the view – and obviously you don't want 600,000 litres of water draining through the building either," he added.

While the concept still doesn't have a buyer, it's been said that Infinity London could begin construction as early as 2020.

The pool will be located on the roof of a 55-story building and will have a transparent floor and sides so that patrons can make the most of the view and the design. It will feature transparent sides and floors so that visitors below will be able to see people swimming around above them.

Meanwhile, Dubai has revealed a few interesting 360-degree pools as well and one that's set to be completed way before the London one. Dubai's 360-degree swimming pool will sit above new five-star hotel, The St Regis Dubai – The Palm.

Given London's grey and overcast weather for most of the year it will be interesting to see just how popular the pool will be once it's completed.