The New Acropolis Museum is located just two-hundred yards south of the Acropolis itself in the Makrigiani District. The main entrance is off of Dionissiou Areopagitou Street, part of the pedestrian promenade that winds around the southern and western flanks of the Acropolis.
Getting to the museum could not be easier. Take the Metro (Line 2) to the Akropoli exit (just one stop south of Syntagma Square). Head upstairs following the “Dionissiou Areopagitou” signs. Escalators will carry you up to the surface level. When you hit the sidewalks, you are on Makrigiani Street and should be headed north. Walk straight ahead about 20 yards. This will dump you onto Dionissiou Areopagitou Street, at which point you will turn left (west). Go another 25 to 30 yards and the entrance to the museum will be on your left. Walk down some stairs, go through a plexiglass gate, and you’ll see a doorway with an “Entrance” sign above it.
Alternatively, if you have just visited the Acropolis and want to top your tour with a look at the New Museum, walk downhill (east) on Dionissiou Areopagitou Street, with the Acropolis on your left and a line of expensive apartments and condos on your right. Look for a break in the housing as you near the bottom of the hill—on your right. Again, go down some stairs, through a plexiglass gate, and you’ll see the entrance ahead of you.