11. Check Out The Traffic Light Tree

Standing on a roundabout next to the famous Billingsgate fish market, it's a slightly dystopian sight, especially considering the lack of vegetation surrounding it. But it's also quite beautiful, especially when lit up at night with it's customary red, amber and green hues. It should be noted that the traffic light tree is purely decorative and is not used to direct traffic in any way. We think.
10. Explore The Tropical Gardens In Barbican

At the heart of the complex, you will find the second biggest conservatory in London, which houses a 'tropical oasis' of plants, birds and exotic fish. The gardens are not always open to visitors, so you need to check ahead of time, but it's well-worth heading to Barbican anyway to take a look around and get thoroughly lost.