For travelers with a flair for ancient times, the Acropolis in Athens, Greece is a veritable wonderland. 

 Touring the authentic Ancient Greek ruins of this ancient high city, with its stone paved paths, classic architecture, antique class and grandeur is sure to make you feel as if you have stepped back in time to the days of Cecrops, the first Athenian King, and later the Roman, Byzantine, Latin and Ottoman periods.
The Acropolis is perched high above modern day Athens, commanding beautiful views of the city as well as a collection of famous ancient architecture.  The area is composed of a main archaeological site surrounded by a public area with refreshments.  In the summer months it is a good idea to take a bottle of water along with you, as it can get quite hot.
The Parthenon is one of the most famous sites in the Athenian Acropolis archaeological site.  The Parthenon is the largest temple in the area and was originally built in dedication to the goddess Athena, whom the city of Athens was named for.  The Parthenon was later converted to a mosque.  The Parthenon and other Acropolis ruins account for some of the oldest architecture remaining on the planet having been built in the 5th century BC.  Seeing it in person is truly breathtaking.
Also located on the Athenian Acropolis is the Erectheion.  This ancient Greek temple was built in dedication to Athena and Poseidon-Erechtheus.  The Caryatid stone carving sculptures that were once part of the Erectheion have been moved to the New Acropolis Museum.  The Propylea, the ancient gateway to the Acropolis, is also a must-see landmark in Athens’ high city.
The New Acropolis Museum, located to the south of the Acropolis in Plaka, is a great way to learn even more about Ancient Greece and the archeological findings at the Acropolis.  The museum houses all of the artifacts found in archeological digs on the Acropolis and covers a time span beginning with the Greek Bronze Age and moving through to the Roman and Byzantine periods in Greece.  The old Acropolis Museum was replaced by this new building in June of 2009.
The Acropolis is easily accessible by metro.  However, the area can become quite crowded with tourists so it is advisable to arrive early to beat the rush.