The Brunswick Plane ...

... is a huge London Plane tree (Platanus x acerifolia)*, over 200 years old and "thought to be the second oldest in London; [it] was declared one of the Great Trees of Britain in 2009."  It is in Brunswick Square Gardens, created in the 1790s, and may be one of its original trees.  The first extra gives a summer view (captured on one of the Garden's information displays). The second extra shows a colorful bit of the large nearby shopping mall. 

*In the U.S.some trees in the genus Platanus   are called sycamores.