If you came this way from the Old City, you most likely walked through the Jewish Quarter.

CENTERFORSECURITYPOLICY: Jerusalem, the Eternal Front Line

But a tornado in January wiped out a large portion of the Quapaw Quarter, the old heart of the city.

ECONOMIST: Urban development

The same is true in Hanoi, where the city authorities are battling to stop new housing and retail developments encroaching on historic buildings in the old quarter.

ECONOMIST: Tourism could do a lot of good if Vietnam handles it properly