Hamburger "patty" is rarely used, or the term can even refer simply to ground beef. The term may be prefixed with the type of meat or meat substitute used, as in "turkey burger", "bison burger", or "veggie burger". Hamburgers are sold at fast-food restaurants, diners, and specialty and high-end restaurants (where burgers may sell for several times the cost of a fast-food burger, but may be one of the cheaper options on the menu). There are many international and regional variations of the hamburger. The term "hamburger" originally derives from Hamburg, Germany's second-largest city. In German, "Burg" means "castle", "fortified settlement"
Rudolf Hamburger with the International Congresses of Modern Architecture. With the help of Syrkus, Rudolf Hamburger entered into a form of architectural partnership with a Warsaw architect called Spiwall. The partnership concentrated on residential houses and villas. Hamburger's residence permit did not permit him to earn money in Poland. Some sort of financial arrangement with Spiwall was nevertheless devised, and Hamburger did most of his partnership work from home. However, a succession of "conspiratively arranged" changes of address made it increasingly hard for Hamburger to work in the city. He did draw up plans for a substantial ten dwellings unit for his