This town hall, built under Charles IV., and a subsequent building in the Renaissance style that was afterwards erected here have long disappeared. The last-named building was demolished in 1806 by order of the Emperor Francis I., and the present uninteresting structure was erected. Of the old building a tower, formerly, probably, a campanile similar to that of the town hall of the old town, remains. It contains a chapel dedicated to St. Wenceslas, which is still in the same condition as it was in the fifteenth century. From the Karlovo Námesti, following the Vysehrad [Illustration: CHAPEL OF ST. MARTIN] Street, and passing near the Emaus Monastery, that has already been mentioned, we arrive at the Vysehrad. The Vysehrad, formerly an independent community, but now one of the districts of Prague, has at the present day little interest for the mere sightseer. But its mythical and historical associations render it very precious to those who have some knowledge of Bohemia's past. The traditions connected with the spot have been the subject of many Bohemian poems. Recently Zeyer published his _Vysehrad_, which will interest those who wish to penetrate somewhat deeper into the past of Prague.[51] Of the old semi-mythical residence of Libussa no trace remains, and the mediæval citadel that played so important a part in the Hussite Wars has also disappeared. The existent fortifications are of modern date. Of the many former churches on the Vysehrad two only now require notice. One is the Romanesque Chapel of St. Martin, said to have been founded by St. Adalbert on the site of a Pagan temple. It is one of the three round chapels that are the oldest religious edifices in Prague. It is, as Monsignor Lehner writes, 'the only remaining relic of the splendour of the Vysehrad during the period of Romanesque architecture.'