Do not confuse Eisbock with North American ice beer. The latter is an abomination, in which, after freezing, the lifeless lager is weakened with the addition of water. Eisbock, by contrast, is a marvel of science.
There are still unknown beers and craft breweries out there that are slowly emerging to find a following in America. Take the new craft beers being produced in a country not typically thought of when it comes to beer: Italy.
While lagers and German Pilsners reign supreme in most areas of the country, Altbier accounts for almost half the beer consumed in Düsseldorf, and local Altbier breweries and quaint brewpubs churn out surprising volumes of the antique beer style.
In many ways, the Denver/Boulder region is the capital of the modern craft brewing renaissance. Whether in their kitchens or their brewhouses, the brewers of the area have been pushing craft beer forward for more than three decades.