generate questions: As interesting examples of expositions the most notable are: the world's first Museum of Posters boasting one of the largest collections of art posters in the world, Museum of Hunting and Riding and the Railway Museum. From among Warsaw's 60 museums, the most prestigious ones are National Museum with a collection of works whose origin ranges in time from antiquity till the present epoch as well as one of the best collections of paintings in the country including some paintings from Adolf Hitler's private collection, and Museum of the Polish Army whose set portrays the history of arms.
What does the world's first Museum of Posters have one of the largest collections of in the world? {sep_token} How many museums are in Warsaw? {sep_token} Warsaw's National Museum is one of the most what? {sep_token} What does the National Museum boast having from Adolf Hitler's private collection? {sep_token} What does the Museum of the Polish Army portray the history of? {sep_token}