Meet Alan Parkinson, our guest blogger for December.

Oliver O'Brien wonders where London actually begins and ends.

James Cheshire talks about map projections and the job of cartographers in producing different views of the world.

James Cheshire talks about Hornstrandir in Iceland, and how former inhabitants and visitors have left their mark.

Oliver O'Brien writes about the Barbican Estate, an (in)famous example of a planned post-war housing estate with a dramatic design.

There is a burst of construction activity in the City of London at the moment – several new skyscrapers are starting to appear on the skyline, in amongst older buildings such as St Paul's Cathedral. Oliver O'Brien from UCL CASA looks at the balance between old and new.