1. Ancient Greece - first European civilisation and the father of maths, science, English, the Olympics and more!
2. Macedonian Empire - conquered most of what was then the known world (in under a few decades) whilst never losing a battle.
3. Byzantine Empire - lasted for over an entire millennium and spread the Christian Orthodox faith to many countries.
4. Modern-day Greece, - won the 2004 Euros and currently obtains arguably the best military pilots on Earth.Greeks were mega chads. Spartans had their culture embedded into physical activity, the ancient greeks built the foundation of democracy (don't know if that's good), greek mythology was borrowed by the cosmopolitan romans and is still interesting to this day (probably the most iconic paganism). Moving to the future, the Kingdom of Macedon at its peak by Alexander the Great is overrated in my opinion, but he was the most handsome and powerful man in the world. Though his death was tragic, his story is interesting, as well as his legacy. The Hellenistic Period wasn't all that interesting in my opinion. Moving onto the middle ages, the birth of the byzantine empire wasn't all that fun, but the greeks sustained as amongst the longest surviving empires in the entire world. Greek cataphracts, the macedonian dynasty, the komnenian restoration, all of those are interesting. Greeks abandoning their ancient culture for imperialism and christianity was disappointing however.Greece is the birthplace of the entire world!
Everything starts and ends here.
Take a look back in history as regards arts, science, civilization and you can easily thinks and consider it (despite your origin) as one of the most important and influential nations in history of our planet.Culturally speaking we owe a lot to Greece for revolutionizing the importance of science, art and civilization in general. Plus,Greece had 2 of the strongest empires: Alexander the Great's (Hellenic Empire) which was ridiculously large and could've been larger and the Byzantine Empire or Eastern Roman empire which spanned 1100 years.