Those are very nicely gussied up but the spaces involved all seem relatively modest. So I'd guess that they cost less to build than the large US stations we're

Those are very nicely gussied up but the spaces involved all seem relatively modest. So I'd guess that they cost less to build than the large US stations we're talking about. Those details cost money but I'd guess single digits millions at most, not the half billion a New York subway station can cost.