The Powder Gate can trace its origins back to the 11th century, when the original gate was one of 13 entrances to Prague's Old Town.
Work on the present structure began during the reign of King Vladislav II in 1475 and was modelled on the Old Town Bridge Tower, built a century earlier.
Originally known as the New Tower, its name was changed to the Powder Gate in the 17th century when it was used to store gunpowder.
Today, the Powder Gate houses an exhibition entitled "Prague Towers" and photos by Ladislav Sitensky. It is also possible to climb the 186 steps inside to reach the viewing platform at 44 metres, to enjoy views over the Old Town.
As with other historically important towers in Prague, the Powder Gate retains an appropriately sooty look that reflects its past.
To discover more about the history and attractions of Prague, take a Prague tour:
Prague Grand City Sightseeing Tour
Prague Grand City Sightseeing Tour & Boat
Best of Prague Walking Tour
Prague Explorer Walking Tour.