Wandering the South Bank from Waterloo to London Bridge stopping for the odd cheeky pint and sniffing round landmarks like the Tate Modern and Shakespeare's Globe is a fine way of whiling lazy weekend afternoon away.
As I'm doing that later today with some chums, I got the idea of trying the route out on Google Earth.
When you first start Google Earth, the default view of the earth is a "top-down" view, but you can tilt the terrain from 0 - 90 degrees, and rotate the view for a new perspective with the navigation controls.
It really is surprisingly good, and if you turn on the 3D Buildings layer, flat shaded models of some key buildings appear. You can see Red Ken's Gherkin and London Bridge rendered in that format in the screen shot above which was taken towards the end of my virtual meandering.
It is still essentially a toy, but this software is going to be indispensable in an iteration or two.