This is the UK's largest permanent street art project and the biggest urban arts festival in Europe, attracting the world's leading urban artists to converge and create a series of temporary and permanent street art installations and sculpture, including some of the world's largest scale outdoor paintings.

CNN: SHARE THIS

However in urban centres like New York, historic street art continues to be threatened by gentrification.

BBC: Urban art attracts tourists

Affordable urban art can be found at 83 Club Street, a bar where visitors can buy what they see on the walls as they sip cocktails and eat French-influenced bites such as marinated salmon blinis and roasted beer and Harissa sausage.

BBC: An arts infusion in sterile Singapore