A viewing gallery has opened on top of the new skyscraper at 22 Bishopsgate.  Visitors to London can get views of the City without paying if they find the London Eye or The Shard too expensive. It joins the Sky Garden on top of the Walkie-Talkie building as a viewing platform which is accessible to the general public and free of charge. Café/bars serving hot and cold drinks can be found in both locations, but visitors are under no obligation to buy anything. Both viewing platforms have free toilet facilities.

Which is the most important clock in the world? Many visitors to London would answer ‘Big Ben,’ even though this is officially the name of the bell behind it rather than the clock itself. However, as a London blue badge guide, I would say that the world’s most important timepiece is the John Harrison H4 which can be seen in the Greenwich Royal Observatory museum near where the Prime Meridian is marked on the ground.