downing street
The Cenotaph sits in the middle of the road in London called Whitehall where there are many government offices situated.
Harley Street
Avenue, terrace, lane, thoroughfare, boulevard, roadway
The address of the Whitehall Free Library is: 12 Williams Street, Whitehall, 12887 1310
Holborn Street
Yes
Whitehall.
Parliament Street links Trafalgar Square and Parliament Square. And Whitehall.
Molly Whitehall's birth name is Molly Louisa Whitehall.
The noun 'street' is a singular, common, concrete noun; a word for a public thoroughfare; a word for a thing. The name of a specific street is a proper noun. The name of a specific street is always capitalized, for example Main Street, Alexander Street, Fourth Street, etc.
I believe you mean "thoroughfare" and that is a street that connects to another street at both ends.
Trafalgar Square is the name of the street. It lies at the jnction of Northumberland Avenue, Whitehall, The Mall, St Martins Lane and The Strand.