Greece is a country in southeastern Europe with thousands of islands throughout the Aegean and Ionian seas. Influential in ancient times, it's often called the cradle of Western civilization. Athens, its capital, retains landmarks including the 5th-century B.C. Acropolis citadel with the Parthenon temple. Greece is also known for its beaches, from the black sands of Santorini to the party resorts of Mykonos.
Situated on the southern tip of the Balkan Peninsula, Greece is located at the crossroads of Europe, Asia, and Africa. It shares land borders with Albania to the northwest, Macedonia and Bulgaria to the north, and Turkey to the northeast. The Aegean Sea lies to the east of the mainland, the Ionian Sea to the west, the Cretan Sea and the Mediterranean Sea to the south. Greece has the longest coastline on the Mediterranean Basin and the 11th longest coastline in the world at 13,676 km (8,498 mi) in length, featuring a large number of islands, of which 227 are inhabited. Eighty percent of Greece is mountainous, with Mount Olympus being the highest peak at 2,918 metres (9,573 ft).