close-up of prague astronomical clock prague orloj, pražský orloj in the facade of the old town hall staroměstská radnice of p

astrological astrology astronomical astronomy calendar circle clock clockwork close closeup culture czech design detail facade famous figure gold golden gothic hall historical history horologe horoscope landmark map mechanism medieval monument moon number old orloj planet prague praha prazsky pražský radnice republic science square star staroměstská sun symbol technology time tourism town travel zodiac