The western departures concourse of <a href="https://en.wikipedia.org/wiki/London_King%27s_Cross_railway_station" class="extiw" title="en:London King's Cross railway station">London King's Cross railway station</a>, which opened on the 19th March 2012.<p>Designed by <a href="https://en.wikipedia.org/wiki/John_McAslan" class="extiw" title="en:John McAslan">John McAslan</a>, it is intended to cater for much-increased passenger flows and provide greater integration between the intercity, suburban and underground sections of the station, as well as facilitating easier passenger exchange between the King's Cross and St Pancras complexes. Passengers departing on trains at this station use the new concourse; those arriving on trains must exit the station from old concourse on Euston road. The architect claims that the roof is the longest single-span station structure in Europe. The semi-circular building has a radius of 54 metres and over two thousand triangular roof panels, half of which are glass. The steel structure of the roof, engineered by <a href="https://en.wikipedia.org/wiki/Arup" class="extiw" title="en:Arup">Arup</a>, has been described as being "like some kind of reverse waterfall, a white steel grid that swoops up from the ground and cascades over your head"</p><p>Source: <a rel="nofollow" class="external text" href="http://www.thisislondon.co.uk/arts/architecture/all-change-at-kings-cross-7565844.html">"All change at King's Cross"</a> by Kieran Long at the <i>London Evening Standard</i>, 14 March 2012.</p><p>The photo was taken from a central position on the mezzanine floor during the evening rush hour.</p><p>This image was taken with a <a href="https://en.wikipedia.org/wiki/Samyang_Optics" class="extiw" title="en:Samyang Optics">Samyang</a> 8mm <a href="https://en.wikipedia.org/wiki/fisheye_lens" class="extiw" title="en:fisheye lens">fisheye lens</a> at f8, 1/15s, ISO 200.</p>
<a href="//commons.wikimedia.org/wiki/User:Colin" title="User:Colin">Colin</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>