Athens is loaded with museums. It seems like there are new museums and branches of old museums opening every week.
You can check the Athens News for traveling exhibits and this page will give you information on the main museums that should not be missed.
An excellent book to get is The Museums of Athens by Aristidis Michalopoulos which is the most complete guide to Athens Museums that I have found. It contains opening and closing hours, entrance fees, and maps and descriptions on how to get to museums in Athens and Pireaus, the suburbs and nearby islands.
National Archaeological Museum
The National Archaeological Museum ranks among the top ten museums in the world. Its impressive collection is housed in a beautiful neoclassic building near the juncture of Alexandras Avenue on Patission Avenue. There is a gift shop, and a cafe in the sculpture garden. Children under 6 and EU students get in free.
The museum is a five minute walk from Victoria Station and a 10 minute walk from Omonia. The Trolly #’s 1,2,3,5,6,7,8,9,11,13, and 15 all stop there. W ell not exactly at the museum. They actually stop by Tositsa Street and you have to walk past a bunch of drug addicts to get there but they probably won’t bother you. They have their own problems. If the only day you can come is Sunday don’t bother. Only 8 of the 64 galleries are open due to a shortage of funds, and you still have to pay the same price.
The Acropolis Museum
The new Acropolis Museum was designed to offer the best conditions for the exhibition of its exhibits. A walk through its galleries is a walk through history between the masterpieces of the Archaic and Classical periods, but also in the ancient neighborhoods of Athens whose city streets and buildings you can see below when you look through the glass floors of the museum. It was hoped that by building the Acropolis Museum, the British Museum would return the Elgin Marbles, but don’t hold your breath. In the meantime there are copies of those pieces to go along with the thousands of ancient stones and statues that finally have a home, worthy of them. Don’t miss this museum.
The Benaki Museum
Though the National Archaeology Museum gets all the press, in my opinion it is the Benaki which is the best museum in Athens and certainly the most important in terms of the history of both ancient and modern Greece as well as art and culture. I would also suggest that it is every Greek-American, Greek-Canadian, Greek-Australian and anyone who is of Greek origin or has an interest in Greece to visit the Benaki for a better understanding of the country which is modern Greece. Starting at the bottom floor with the ancient stuff and going up through the various periods of Greek history, my favorite part is the third floor and the heroes of the Greek Revolution and the birth of the modern state of Hellas. Just walk up Vass Sophias from Syntagma with the National Gardens on your right.
The Goulandris Museum of Cycladic and Ancient Greek Art
This Outstanding collection of ancient Cycladic art is excellently curated. Open daily except Sundays and Tuesdays from 10am to 4pm.
The ancient cemetery of Athens at the bottom of Ermou past the Monastiraki flea market has a nice little museum. The site itself though off the beaten path is one of my favorites. Lots of pottery and tombstones.
Museum of Greek Folk Art
Embroideries, wood carvings, jewelery, and other traditional folk art. The museums not-to-be-missed collection of ceramics is housed in a beautifully renovated former mosque at 1 Areos Street on Monastiriki Square. Open daily except Mondays from 10am to 2pm.
Before the Nazi occupation and the decimation of Greece’s Jewish population, many of Greece’s Jewish communities traced their roots back to the Spanish Inquisition and before to Classical Greece. Art and artifacts from Jewish communities through the ages, as well as documentation of the Holocaust makes this museum a cultural treasure. This museum was the creation of my 9th grade history teacher Nikos Stavrolakis. Opening hours: Daily 9.00-2.30, except Saturdays and Sundays 10.00-2.00
The permanent collection of modern Greek painters and international contempory artists includes large-scale sculptures. Open daily from 9am to 3pm. Open Sunday from 10am to 2pm. Closed Tuesday.
Municipal Gallery of Athens
The Municipal Gallery of Athens is houses a rich collection of nearly 3,000 works from leading 19th- and 20th-century Greek artists. Its current building was designed in the early 19th century by prominent architect Hans Christian Hansen and is one of the oldest neo-classical buildings in Athens.
The gallery is open Tuesday through Saturday from 10:00 to 14:00 and 17:00 to 21:00 (10am-2pm and 5-9pm), on Sunday from 10:00 to 14:00 (10am-2pm), and closed Monday. Admission is free.
National Historical Museum
This museum is perfect for those interested in the Greek War of Independence and it’s artifacts. Open daily from 9am to 1:30pm. Closed Mondays. Free on Sunday.
more museums and other info can find here