Old Town Hall and Astronomical Clock

The Prague Astronomical Clock is the oldest astronomical clock in the world still in operation, and its hourly show is the most-watched minute in the city. The Old Town Hall itself was established in 1338, when the Old Town burghers were finally allowed a council house, and they spent the following centuries buying up neighbouring houses and adding to it, which is why the building is a patchwork of Gothic, Renaissance and later facades. The clock was installed on the south side of the tower in 1410, built by the clockmaker Mikuláš of Kadaň with the astronomer Jan Šindel, and it has been rebuilt, repaired and improved many times since, most recently in a thorough restoration completed in 2018. The upper dial is an astrolabe showing the position of the sun and moon in the zodiac, Old Bohemian time and the hours of the day; below it is the calendar dial with the signs of the zodiac and scenes of country life by the nineteenth-century painter Josef Mánes, whose original panel is now kept in the City of Prague Museum. On the hour, through much of the day and evening, the show begins: a skeleton representing Death tolls a bell and turns an hourglass, the figures beside him shake their heads, two small windows open and the twelve apostles file past, and a golden cockerel crows to close it. It lasts under a minute and the crowd can be dense, but it is part of the Prague ritual. The ticket is for the hall and its tower: you can visit historic rooms, glimpse the apostle mechanism from inside, descend to the Romanesque and Gothic spaces underneath, and ride a lift or climb a ramp to the gallery, some seventy metres above the square, for a view straight across to the Týn Church.

The building carries a scar that explains a lot about modern Prague. In the uprising against the German occupiers in May 1945, the Old Town Hall was shelled and its neo-Gothic east wing burned out, taking much of the city archive with it. The wing was never rebuilt, which is why the hall stands at an odd angle to the square, with a grassy gap and a plaque where the rest of it used to be. Look also at the ground in front of the tower: the twenty-seven crosses set into the paving mark the Bohemian Protestant leaders executed here in 1621 after the Battle of White Mountain. These stories make the visit more than a viewing platform.

Working the visit: watch the hourly show from the square first, ideally standing back toward the middle of Old Town Square rather than pressed under the dial, then go inside. Tickets are timed in busy periods and the lift to the gallery can queue, so book ahead and avoid the hour just after the show, when everyone who watched decides to go up. The gallery is narrow and goes all the way around the tower, with views over the Týn Church's twin spires, St. Nicholas Church, the castle on its hill across the river and the domes of the New Town. Late afternoon light is the most flattering for photos, and the evening view of the floodlit square is worth timing if the tower is open late. The underground spaces are the remains of the original street level, which was raised in the Middle Ages to protect against Vltava floods, and they are cool and atmospheric.

Know the honest drawbacks. The show is short, and people who travel for it are sometimes underwhelmed; think of it as a medieval machine still keeping time after six centuries, not as a performance. Pickpockets work the crowd under the clock, so keep phones and wallets secure. In December, the Christmas market fills the square and the crowds swell further. Pair the tower with a walk around Old Town Square and down Karlova toward Charles Bridge, or with the Jewish Quarter, which begins a few minutes north along Pařížská.