There are few things as evocative as the art nouveau design and lettering of the Paris metro. The first line opened in 1900 during the Paris World Exposition, grew to more than 133 miles of track and 384 stops during the next 40 years, and since then has gone on to become the second busiest subway system in the world (only Moscow’s is busier.) And still, with its clearly color-coded maps and signs, it remains among the easiest international systems to decipher. On film, many directors have paid homage to the metro, including François Truffaut and the Coen Brothers. All aswirl and suggestive of its turn-of-the-century beginnings, here’s the entrance to the station at the equally evocative location, Bastille. And when you emerge from the metro here, you’ll be very close to the daily street market (lots of oysters, lots of lobsters just before New Year’s Eve), the new opera house and the wonderful brasserie, Bofinger.