Network Rail has released another batch of photographs showing London's major rail stations from the air.
Compared with similar shots taken at the beginning of the year, it's possible to mark the progress on Blackfriars (where the installation of a solar power-generating photovoltaic roof recently reached the halfway point) and at London Bridge station, where the new Thameslink viaduct is inching ever closer to the rest of the network. The area will be under construction for some time: the planned redevelopment of London Bridge station is scheduled for completion in 2018.
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