Walking between lines at Green Park, not as I first thought,  Oxford Circus. Blue and white tiled walls...

Lovely 'time tunnel effect', especially as bundled up in extra-long Dr Who scarf...

Didn't actually leave the station, or pass through the barriers on this specific journey, but I have on many occasions, so I'm counting it, so nyer!

Found the flower on a bench at Westminster, just laid there..so took it with me as a present from the tube god that also happened to match my outfit