The chronological history of the Polish army is presented in a series of gloomy rooms. Suits of armour, crossbows, muskets, medals and paintings pack this museum, though the scarcity of English-language explanations mean you’ll need to hire an English-speaking guide to get the most out of the place. The room at the end is dedicated to Poland’s role in WWII, with specific emphasis on the Warsaw Uprising. Curiously, the best part of the museum is actually free of charge: the outdoor collection of 20th century weaponry includes an array of tanks, missiles, aircraft and rocket launchers. Note that on Wed., Sat. and Sun. from 10:00-15:00 visitors can see the Transport Aircraft AN26 for a 2zl fee. 

Admission 10/5zł, groups over 10 people 4zł per person, Sun free. Tours with audioguide 17/10zł.