Aspropyrgos, Greece

With just under 5,000 residents, Aspropyrgos is a small suburb northwest of Athens that's more industrial hub than idyllic Greek getaway. The city's scorching hot climate - it once hit a blistering 47.5°C, the highest temperature recorded in Europe - is just one downside for would-be expats. Pollution from the massive Aspropyrgos Refinery is also a persistent headache. While the commute to the capital is reasonable, the bureaucracy involved in day-to-day life can be a real slog. Those seeking a laidback Mediterranean lifestyle would be better off looking elsewhere.