Banksy The Ghost.

Banksy pulled off what is believed to be his biggest work yet in London during the wee hours of Saturday night or Sunday morning this past weekend. Somehow he managed to get three storeys of scaffolding behind a security fence despite being in view of a CCTV camera the whole time (circled in red). Seriously, this dude is so fast I can only imagine how he pulled this one off. Kudos to him.

Source: The Mail On Sunday.