Travelling on the London Underground has become a new experience due to the coronavirus lockdown.

With fewer people now jostling for position, you may have had a chance to see a little bit more if you are using the network for an essential journey.

You may have noticed that there's something in each and every London Underground station - a black maze on a single tile.

It looks like a mini-map or quirky guide, but the drawing has an entirely different meaning. In fact, it's a piece of artwork.

To celebrate 150 years of the London Underground in 2013, artist Mark Wallinger created 'Labyrinth' - 270 unique works for each of the 270 stations on the London Underground network.

The work, commissioned by Art on the Underground, is inspired by other symbols of the London Underground that have become some of the most recognised in the world - in particular, the roundel and map.

Before unveiling the artwork in 2013, Mr Wallinger, from Chigwell, said: "It's an honour to have received this commission from London Underground to mark its 150th anniversary. The Underground has been part of my life since childhood.

"It's surely every artist's dream to create a permanent work that will be encountered by so many of people and this opportunity is especially close to my heart.

"The journeys we take on the Underground are unique to each of us. I hope Labyrinth can perhaps reflect that individual yet universal experience."

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