* ... in an "underground" map...
One of the (main) "lessons" of this Design Classic is a little bit counter-intuitive (being a map, and all): doing away with a (previously deemed) fundamental (?) aspect of the intrisic design -- in this case, true, accurate, geography -- can have a beneficial effect in the overall, resulting, evolved, design.
That was the key insight that set Harry Beck's London Underground map above & apart.
A design classic and, also, a personal favorite: Tintin's (Hergé's) rocket from "Objectif Lune" ("Destination Moon").
Time for another (design) classic. This time, the very British red telephone box.
Design by Sir Giles Gilbert Scott.
A design icon/classic straight from the 1970s: the eclectic Eagle Transporter (or just Eagle).
From the 1975's TV Series 'Space: 1999'.