Old Town Square and Astronomical Clock
Prague, Czech Republic · Landmark
About Old Town Square and Astronomical Clock
Old Town Square is the historic heart of Prague, lined with magnificent Gothic, Renaissance, and Baroque buildings. Mounted on the Old Town City Hall, the medieval Astronomical Clock—known as the Orloj—is one of the oldest operating astronomical clocks in the world. Visitors flock here to experience centuries of architectural beauty and watch the clock's legendary mechanical performance.
Don't miss
- Watch the Walk of the Apostles as the mechanical figures parade past the windows of the Astronomical Clock on the hour.
- Climb to the top of the Old Town Hall Tower for sweeping panoramic views across Prague's terracotta rooftops.
- Admire the twin spires of the Gothic Church of Our Lady before Tyn dominating the eastern side of the square.
- Stroll among the vibrant pastel facades and explore the grand Jan Hus Memorial at the square's center.
Plan your visit
Visit early in the morning around 8:00 AM to enjoy the architecture without the heavy crowds, or visit at dusk to see the monuments illuminated against the evening sky.
Walking around the square and watching the clock show is completely free. Paid admission is required to climb the Old Town Hall tower and tour its historical underground, which can be booked online in advance to skip the line.
The square is located directly in Prague's historical center and is an easy 5-minute walk from the Staromestska metro station on Line A or tram stops along the river.
Tips for visiting
- Arrive at the Astronomical Clock roughly 10 minutes before the hour to secure a clear viewing spot before crowds pack the pavement.
- Keep a close eye on your personal belongings, as the tightly packed crowd during the hourly clock show is a known target for pickpockets.
- Avoid dining at the outdoor cafes situated right on the square if you are on a budget, as prices are significantly higher than in nearby side streets.
- Take the elevator or stairs inside the Old Town Hall tower to photograph the square from an elevated bird's-eye perspective.
- Visit during December or Easter to browse Prague's most famous and festive holiday markets held in the center of the square.
Old Town Square and Astronomical Clock FAQ
How long does the Astronomical Clock show last?
The mechanical show lasts under a minute, typically around 45 seconds. It concludes with the crowing of a golden rooster and the ringing of the bell atop the tower.
Is the clock accessible for travelers with limited mobility?
The square itself is paved with historic cobblestones, which can be bumpy but are generally manageable for wheelchairs and strollers. The Old Town Hall tower also features modern elevator access directly up to the observation deck.
What does the Astronomical Clock actually show?
Beyond telling the standard time, the clock displays astronomical details including Babylonian time, old Bohemian time, and the positions of the sun and moon in the zodiac. The lower calendar dial represents the months of the year with seasonal agricultural scenes.
Can you go inside the Astronomical Clock?
You cannot enter the clock mechanism itself, but a ticket to the Old Town Hall allows you to view the wooden Apostle figures from the inside during their procession. The ticket also grants access to the historic council chambers and the underground medieval cellars.
More things to do in Prague
Charles Bridge Landmark
Stroll across this iconic 14th-century stone bridge lined with baroque statues, best experienced at sunrise.
Prague Castle Complex Landmark
Explore the sprawling royal grounds, including the soaring Gothic St. Vitus Cathedral and Golden Lane.
Josefov (Jewish Quarter) Neighborhood
Discover deep historical roots through preserved synagogues and the remarkable Old Jewish Cemetery.
Petřín Lookout Tower Nature
Ride the funicular railway up the hill for panoramic views of Prague's red roofs and river bends.
National Museum Museum
Admire natural history and cultural exhibits in a monumental neo-Renaissance palace crowning Wenceslas Square.
Vyšehrad Fortress Landmark
Wander an ancient hill fort featuring tranquil gardens, historic battlements, and spectacular river overlooks.
Letná Beer Garden Food
Sip a fresh local pilsner under leafy trees while enjoying sweeping vistas of the Vltava River bridges.
AI-written guide, last updated 2026-10-09. Check opening times and ticket prices on the official website before you go. Photos: JancickaL, falco on Pixabay.