Naše maso is a butcher that sells beef from Czech Fleckvieh cattle, pork from Přeštice pigs, and sausages and smoked meats made from recipes dating back to the First Czechoslovak Republic. But the secret here isn't the cuts of beef and pork. It's the INSANELY GOOD dry aged burger. Best. Burger. Ever. I dare you not to eat it every day you are in Prague.