By far the most popular type of beer in the world, lager tends to be crisp, nonchalant and easily swillable. If you've had a pilsner, bock, marzen or Colt 45, then you've tasted lager.

What's the difference between a lager and an ale? German for "storehouse," lager refers to the cold rooms where lager is fermented (using bottom-fermenting yeast). Ales are made with top-fermenting yeasts that prefer warmer temperatures.

Lager predates Christopher Columbus, but by the 19th century, the U.S. had developed its own style of lager. Based on the Czech pilsner, the taste of American lagers are generously characterized as "flavor neutral."

Every year, Munich celebrates lager with Oktoberfest.