At the base of the Acropolis stood the resident portion of the city, containing also other temples and public buildings, which are still standing. The most important are the temple of Theseus, the Tower of the Winds, the theatre of Bacchus, and the monument of Lysicrates. Besides these there are many Roman buildings, but they belong to a subsequent period. Plutarch says that the Athenians under Cimon erected the temple of Theseus on his return from Crete, and that it is of older construction than the temple of Minerva. It has six columns in the front and thirteen in flank, supporting marble beams the extremities of which rest on the inner wall and correspond on the other with the triglyphs on the outer face. The metopes had carvings representing the exploits of Theseus. The temple stands at the base of the Acropolis to the North; it is similar to the Parthenon in many respects, being of the same Doric order, though less rich in sculpture. It is the best preserved of all the monuments, having suffered but little during the twenty-two centuries it has existed. The Tower of the Winds, erected by Adronichus Cyrrhastes, is an octagonal structure surmounted by a frieze, upon which the eight winds of heaven are carved in allegorical figures. The roof is a pyramid of marble slabs and was at one time surmounted by a bronze triton holding a switch, which answered the purpose of a vane, but has since disappeared. The building was used as a water-clock. [Illustration: PLAN OF THE TEMPLE OF THESEUS AT ATHENS.] The choragic monument of Lysicrates, commonly called the Lantern of Demosthenes, is a circular structure of the Corinthian order. The spaces intervening between its six columns are closed by panels of a single stone upon which trivets are carved. The stone roof is decorated with scales and surmounted by a finial of delicate workmanship. On this was placed the tripod of the choir which had been successful in the Olympian contest of the year 375 B.C., according to inscription. There are other Corinthian buildings scattered throughout Greece, but this is generally taken to be the best example and its proportions followed. The carvings of the frieze depict the exploits of Hercules, who is represented clothed in the traditional lion’s skin. On the opposite slope of the hill are the ruined chairs and benches of the theatre of Bacchus, fronting an open stage. In building a theatre, the Northern slope of a hillside was generally selected for the site, in order to avoid the direct solar rays. Seats were provided for the audience by cutting circular tiers in the rock and a marble stage, profusely ornamented, was erected facing them. The stage was raised in order that the orchestra might not interfere with the view of the actors, and a portico adjoining it, served as a promenade during the intervals in the performance.