Vienna Bookstore
This bookstore, in the pedestrian Kohlmarkt street in the center of Vienna, is one of the few stores still there since my student days [n.b. the rest are upscale, like Tiffany, Burberry, Dior, etc]. The portal was designed in 1912 by Adolf Loos, using Freudian theories that say that the recessed entry and the indirect lighting cause a subconscious urge to enter the store. Works for me (or any other book store, for that matter).