arched architecture building ceiling Collcutt curved decorated elements England english extravagant Great Britain lavish lloyd's lloyds London loyds luxurious luxury opulent ornamental ornate painted prestige prestigious prosperity register rich vaulted wealth yellow ancient attraction castle defence defend defensive dominate domination height high historical old perimeter power protection royal secure security stone strength stronghold tall tourism tourist tower turret uk wall window Windsor boat decorative galleon rose shamrock ship stained glass thistle advice alert appropriate-behavior appropriate-behaviour avoid black bright care concern denied directions limitations limited limited-entry not-allowed not-permitted permission-denied prohibited prohibition red restricted restrictions rules sign signs vehicles warning warning sign white