When walking around the corner of the Polish National Museum,it's tough to miss the square filled with army vehicles, airplanes, and helicopters,missile launchers, cannons, or tanks, and even amphibian vehicles. The vehicles are parked all over the place, nearly as if they're in a parade of some sorts. The equipment is all piece of the Polish Army Museum. All of these machines have either served in the Polish army or were captured during a war. tiny signs in Polish and English interpret the story and history behind the items and how they were used during battle. In the summer, or it's common to see veterans near the newer equipment,explaining how it works and telling their personal stories. Besides the large outdoor collection, there is also an indoor exhibition that covers much older military equipment and smaller items that cannot be stored outdoors. Here, and you can find armor and weapons from all over the world. The collection spans as far back as the 10th century and includes equipment from as recently as 2010,as items from the Smolensk plane crash are exhibited.
Source: atlasobscura.com