Historic buildings in King's Cross have been used as a giant canvas for a temporary art installation.
The piece by Swiss artist Felice Varini, which is over 500 metres long, will be unveiled later.
It's taken 12 years and £40 million, but the capital's oldest railway hotel, the Great Northern in King's Cross, is preparing to open its doors to a new generation of guests.
It's another major boost for the area, which is already being given a £500 million pound facelift.
Nick Thatcher has been given an exclusive first look inside:
Train services between King's Cross and destinations in the North East of England are facing delays because of overhead wire problems at Newark in Nottinghamshire. The East Coast main line is affected and tickets are being accepted by other operating companies.
Around 300 people were evacuated from New Zealand's Olympics hospitality house in Kings Cross last night after a fire.
The Emergency services were called to Kiwi House after two gas barbecue canisters exploded. No one was injured.
King's Cross station was evacuated during the morning rush hour today, seventeen days before the Olympic Games are due to begin.
Transport for London say a broken down train led to overcrowding in the station.
It led to anger from commuters who faced delays to their journey to work.
King's Cross station was closed for a short time this morning and the station was evacuated. Transport for London say it was because a broken down train caused temporary over-crowding. The station has now re-opened.
Transport for London have closed King's Cross St. Pancras station due to overcrowding.
Europe's oldest book - the St Cuthbert Gospel - has been saved for the nation, after the British Library raised £9m to buy it.
The gospel dates back to the seventh century and lay buried in a saint's coffin for hundreds of years.
It was produced in the north of England and buried alongside St Cuthbert, an early English Christian leader, on the island of Lindisfarne off the coast of Northumberland in around AD698.
The coffin was moved off the island to escape Viking raiders and the book was rediscovered when the coffin was reopened in Durham Cathedral in 1104.
The gospel, which is now on show at the library in King's Cross, is the earliest surviving intact book from the whole of Europe. Even its original red leather binding survives today.
The chief executive of the British Library, Dame Lynne Brindley, said: "This was a once-in-a-lifetime opportunity to secure the Gospel for the nation and we were both grateful and touched that so many people felt moved to support our campaign."
The new western concourse at Kings Cross Station is opening to the public today, after a transformation programme costing more than £500m.
The station now has more shops and better links between trains and the underground.