The trend toward New York-style loft living is transforming many old warehouses and office buildings in what was once a desolate area, and as NPR's Luke Burbank reports, the city's newest urban pioneers are bumping against the ones who were there first, the homeless.
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.
Since June 2009, the ambulances have pulled up in front of a new hospital that's been tacked on the back, and the majestic oldbuildings are slowly being transformed into a museum and cultural centre.