ncommiss

A modern city hall with a parvis in front of it. Once installed, you can find it in the Monuments (category IV or V, I don't remember) under the name "Hôtel de Ville" (in French).

A three level interchange to link two freeways with a roundabout (made with freeways parts). Once installed, like any mod, you can find it with the name "Echangeur trois niveaux" (in French). It helps fluidifize traffic with a reduced obstruction of the ground, tested and approved in a 300k inhabitants city. (I just saw that a nearly identical interchange was posted yesterday, I didn't copied it, mine was created like two weeks ago)