The world's very first "Galleria" retail complex consisted of two criss-cross concourses which met at a dramatic, 96-foot-high, octagonal atrium.
Photo from Wikipedia / "G. Dallorto"

A contemporary view of GALLERIA VITTORIO EMANUELE II. The shopping venue features toney tenants, such as Gucci, Prada and Louis Vuitton. It also has a McDonald's!
Photo from Wikipedia / "Alterboy"