Jason Lewis completed his human-powered circumnavigation at the Royal Observatory, just after 12.30pm today. He and his supporters heaved Moksha, his wooden pedal boat, across the Prime Meridian to mark the occasion.
There are already pictures of the event on Flickr, which we've saved as our favourites. Tag your own pictures with the expedition's preferred tag 'expedition360' so we can find and share them.
Visitor notice: On Sunday 4 March Cutty Sark and the museum car park will be closed for the Vitality Big Half Marathon. All other museums will be open as normal and DLR and rail links will be running. Find out about road closures