A lavish palace, once the home of an industrial tycoon, may seem like an odd place to house a postal museum, but although the museum's only been here since 2012, the building has been connected with the Hungarian Postal service since 1930, when its private owners lost it. This collection began in 1881, and has grown over the years into what has become a lovely collection of 20,000 pieces. There's a re-creation of a 19th-century post office, and many documents and relics detailing the history and development of the Hungarian postal system. There are also antique mail delivery vehicles, uniforms, a telephone switchboard, and different types of mailboxes. It's a great place to visit with kids.