Liverpool Street Station

Liverpool Street Station, for anyone not from England, is actually in the centre of London and nowhere near 'Liverpool'.
A busy station with Underground lines 'Hammersmith and city', 'Circle', 'Metropolitan' , and 'Central' lines meeting there - as well as 18 Overground platforms.
Between about 10am to 3pm (as in this picture) the crowds are quite manageable, but rush hour is a whole different story.