Greece is located in southeastern Europe, bordered by the Aegean Sea, Ionian Sea, and Mediterranean Sea. It has over 2,000 islands and a coastline of over 13,000 km. Athens is the capital and largest city, with a population of around 4 million people. Some of Greece's most famous attractions that date back thousands of years include the Acropolis of Athens, Temple of Apollo at Delphi, and Theatre of Epidaurus. The document then describes the town of Oichalia, located in central Greece, which has around 5,000 residents and is set on a plain with rivers and churches.