25 ancient Greek cities that no longer exist or are no longer Greek

- Akragas, Modern Italy
- Nikaia, Modern France
- Odessos, Modern Ukraine
- Eucratideia, Modern Afghanistan
- Dodona, Modern Greece
- Naucratis, Modern Egypt
- Kumai, Modern Italy
- Istros, Modern Romania
- Laodicea ad Libanum, Modern Syria
- Smyrna, Modern Turkey
- Heraclea Lyncestis, Former Yugoslav Republic of Macedonia
- Kepoi, Modern Russia
- Heraclea Sintica, Modern Bulgaria
- Cyrene, Modern-Day Libya
- Aigosthena, Modern Greece
- Myrmekion, Modern Russia/Ukraine
- Heliopolis, Modern Lebanon
- Bouthroton, Modern Albania
- Hippos, Modern Israel
- Alexandria on the Caucasus, Modern Afghanistan, Pakistan, and India
- Sybaris, Modern Italy
- Emporion, Modern Spain
- Massalia, Modern France
- Byzantion (Constantinople), Modern Turkey
- Alexandria, Modern Egypt