The Saudi Crown Prince wanted to reinvent urban living with his “linear city” stretching 170km across the desert. But with construction on The Line having already stalled, many are asking if the project was ever remotely feasible.

Malaysia’s urban landscapes double as an architectural record of every culture to have settled here, offering visitors a remarkable glimpse into its complex history

The Bank of England, Threadneedle Street, London EC2

Thirty years ago, work began on turning a disused pumping station inside a castle into one of Europe’s finest climbing centres. That goal has been summited, but the work to expand, update and evolve The Castle Climbing Centre continues

On the verge of starting this self-build, a late change of design proved to be the making of this Devonian house on a bend

So much of Britain’s diverse wealth of historic railway infrastructure still exists in one shape or another -if you know where to look. TIM DUNN goes exploring