Must rush – have to work this evening, having swapped shifts. But here are photos from yesterday's trip into central London, a city made up of lines and shapes and perspectives…

Shell Centre
Looking skywards up the front wall from walkway level

Walkway to the Thames
Emerging from under the Shell Centre, looking towards the river

London Eye
Silhouetted against the mid-afternoon glare

Palace of Westminster
Big Ben and the House of Commons disappear in the sun's haze

Railway crossing
Latticework of metal girders on the Hungerford railway bridge

Bridge supports
Above your head, the Hungerford pedestrian bridge is held together at this point

Hand slide
One of the handrails in Trafalgar Square: tourists at the top take photos

Sea lion
One of the lions at the base of Nelson's Column
