Dragon’s blood, mandrake root and devil’s snare were used for potions and spells in the Harry Potter series. But in real life, the creepy-named plants were used for medicinal purposes and could be purchased at an apothecary, also known as a pharmacy. Today, one of the best preserved apothecaries in the United States has been turned into a small museum in historic Alexandria, Virginia. Deborah Block reports.(Video Source: VOA NEWS)