Does the Arc de Triomphe count as 3 spaces for the largest group, and do streetlights under it still count?

Question

Accepted Answer

Yes. When it is adjacent to your buildings, the Arc counts as three spaces for the largest group and can join a group. Squares under the Arc are cancelled, so a streetlight under it does not score.

Paris: La Cité de la Lumière

Does the Arc de Triomphe count as 3 spaces for the largest group, and do streetlights under it still count?