No cycling in London

This bit of London near the University of London Union deserves a special mention, a sign telling people not to cycle

In the middle of a cycle park. Presumably the cyclists are expected to carry the bikes, the way mountain bikers are.
Despite being a cycling city, Bristol is behind on such signage. The only place where "cyclist" funding has been applied to no cycling signs is the Downs, where a few thousand pounds were invested to discourage people from getting in the way of the Zoo parking area.