Add Yahoo as a preferred source to see more of our stories on Google. On a recent chilly, drizzly afternoon in Amsterdam’s city center, a steady stream of patrons venture out of the rain and into a ...

(CNN) — On a recent chilly, drizzly afternoon in Amsterdam’s city center, a steady stream of patrons venture out of the rain and into a narrow 17th-century building on the Haarlemmerdijk, a popular ...