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The Powder Tower at Prague Castle, also known as Mihulka, dates back to the 15th century. Originally part of the castle’s defenses, it was later used to store gunpowder. With its Gothic architecture and thick walls, it offers a glimpse into the castle’s military past.

History of the Powder Tower

Powder Gate in Prague, historic Gothic tower with intricate architectural details.
  • The Powder Tower, or Prašná brána, is one of the original 13 gates to Prague, built in 1475 as part of the Old Town's fortifications by King Vladislaus II. Once a city entry point, it became obsolete as the city expanded. Today, it marks the boundary of the Old Town and stands as a popular landmark, with an inscription commemorating its foundation by the king, ‘Behold the great building, founded with the hands of the high king Vladislaus, born of the noble blood of dukes and emperors.’
  • The construction of the tower was funded by the Prague aldermen, symbolized by a prominent town emblem on the structure that showcased the city's pride in its connection to the ruler. Initially led by architect Master Václav, the project was later handed to Matěj Rejsek of Prostějov, a rector, teacher, and self-taught stonemason, due to a shortage of skilled stonecutters at the time.
  • In the 17th century, the Prague Powder Tower was used to store gunpowder, which is how it got its current name. Originally, it was called the ‘New Tower,’ likely because it was modeled after the Old Town Bridge Tower on the opposite side of the Old Town.
History of Prague Castle

Powder Tower’s architectural design

The Powder Tower in Prague is a striking Gothic structure, standing tall at 65.5 meters. Its dark sandstone exterior features sharp, pointed arches and detailed stonework, with ornate reliefs. Its upper section is adorned with statues of kings and nobles, while the lower part displays elegant geometric and floral patterns. The tower’s base is square, with a slightly narrower upper portion, creating a tapering effect.

The tower is punctuated by pointed arches and several large, narrow windows, adding to its fortress-like character. On the western side, you'll find the prominent town emblem, which signifies its connection to the Prague aldermen. The design combines strength and elegance, with pointed Gothic arches and a mix of smooth and rough surfaces, reflecting the era of its construction.

Inside the Powder Tower

Prague Castle Powder Tower with Gothic architecture in Prague, Czech Republic.

The exhibition inside the Powder Tower (Mihulka) focuses on the history of Prague’s fortifications and the role the tower played in the city’s defence system.

Powder Tower interior with medieval architecture in Prague Castle, Czech Republic.

You will learn about the tower’s construction, its use as a gunpowder storage facility in the 17th century, and its transformation over time.

Prague Castle Powder Tower with tourists exploring the historic architecture.

The display also highlights the medieval weaponry and military equipment used in the tower, offering a glimpse into the past of Prague’s defence mechanisms.

Prague Castle Powder Tower with Gothic architecture and historical significance.

The exhibition provides a detailed look at the tower's architectural significance and its connection to the city’s medieval history.

Views from the Powder Tower

Old Town Square Prague Castle

To the north, you can see the bustling Old Town Square, with its vibrant buildings

Powder Tower in Prague with view of historic architecture and cobblestone street.
Prague cityscape from a boat Vltava River

Powder Tower Prague: Opening hours

Prague Castle with tourists exploring the historic architecture and gardens.

The Powder Tower is open daily with the following hours:

  • November to February: 10am to 5pm
  • March: 10am to 6pm
  • April: 10am to 7pm
  • May to September: 10am to 10pm
  • October: 10am to 7pm
Prague Castle opening hours

Frequently asked questions about the Powder Tower

Yes, visiting the Powder Tower requires a separate ticket from the standard Prague Castle admission. This ticket covers both entry to the tower and access to its exhibition inside.