I think you could add:
Zurich, Munich, Frankfurt, Leipzig (OK, these 4 only for S-bahn links), Berlin (with a free brown-field N-S city centre route available).
At different times Warsaw, Prague and Lisbon have radically altered their terminal routes to form through corridors.
Madrid now has 2 underground main lines linking its two main stations, and HS trains via Barcelona use an underground through route via Sants.
Milan has a separate W-E underground route, used by some long-distance through services, to complement the Centrale terminus; Naples is somewhat similar.
Bologna HSL went underground.