"GREAT SCOTT!" A double-corner style modular of the famous Clock Tower / Court House from "Back to the Future!"
What a joy and challenge it was to design this MOC! Not only was it a challenge to match the look of the building (classical architecture is particularly sensitive to proportions) but also make sure it fit within the confines of the Modular Building style.
To limit the piece count (and because the inside of the building was never meaningfully shown on-screen), the interior of this MOC is bare-bones but functional (see more pics on Rebrickable). This leaves you with plenty of fun and opportunity to design your own look. Anyone interested can find the instructions here and on Rebrickable.com!