Three quarters of a million people going through Shinjuku, 200 exits. That's an amazing feat of urban planning... Great renderings. Some of the passages have quite low ceilings, a testament to its age and usefulness --it's not like they have the space to redesign them.
Lots of people zooming by each other. Busy to get to work and then, tired and just wanting to get home.
Note that these are from 2005, and both the stations pictured have had quite major renovations since then - Shinjuku has a big new southern annex that would be in the bottom right of this picture, and Shibuya had a platform ripped out of the SE side and moved underground.
Several platforms: they basically ripped out the terminus of the Tokyu Toyoko line and moved it underground to connect to a newly built subway line, with the actual changeover carried out overnight in 4 hours between the last and first trains. An astonishing piece of engineering.
Lots of people zooming by each other. Busy to get to work and then, tired and just wanting to get home.