When you think about the world's great beer cultures, several come to mind. Germany and the Czech Republic excel at lagers. Belgium is famous for Trappist-style ale, witbier and divinely complex traditional sour beers. And over the past 30 years or so, the craft brewing movement has put the United States on the beer map. But in many ways, the beers of the British Isles are the parents to them all. Early American craft brewers took inspiration from the pale ales and IPAs of England.