advice advising alert animal be-careful beware canine canine-guard communicate communication danger dog guard-dog information informing lettering letters lookout mammal message no-entry observe risk risky security sign warned warning watch watch-out wording words 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 signs vehicles warning sign white yellow access-denied communicating exceptions regulations responsible warning-sign architecture berlin building ceiling charlottenburg classic decoration decorative door entrance entry estate facade germany home house mansion massive old plant property real estate representation representative stair step wood wooden access admit arrive attention bell doorway enter entryway get in give access go in horn in knocker let in lion loud make an entrance move in open opening pop in port portal rapper compound police police-only access denied closed denying access denying entry directive entrance barred forbidden gates not allowed not permitted permission denied protected protection restricted area secure security check-point serious stop access-limited behave behavior behaviour caution cautious keep-out keep-to-path no-access restriction safety access-limitations authorise authorised authority electricity electricity-supply power power-supply bay bunkers cape coast coastal coastal-landforms concrete defence defend defending defense headland hidden hills hillside historic history landscape partially-hidden pill-box promontory remnants rocks rocky sea shore shrubbery shrubs slope sloping stony vantage-point vegetation water World-War-2 wwii fight flight