Greece is a small country located in southeast Europe with over 130,000 square kilometers of land and over 1,000 square kilometers of water. It has over 3,000 islands in the Aegean and Ionian Seas, with Crete being the largest island. Mount Olympus is Greece's highest mountain. Athens is the capital and largest city with over 3 million people. Ancient Greece included mainland Greece and Greek colonies around the Mediterranean, with Greeks living as far west as France.