Slightly off the point but one thing i would say is that Istanbul is looking excellent but its is due for a massive earthquake in the next 30 years. Experts have predicted that it will knock something like a quater of the city due to poor construction and likely to kill over 50,000 if past records is anything to go buy.
The fault line lies around 15 km south of the city.
For me the risk is too high as it would take the city a long time to recover and would kill investment in the future after such an event for a fair period of time.
Madrid and other cities in the north of Spain look pretty good still!