I started with this picture of Puerto Madero for contrast. This is not a long walk from our neighborhood which has a rather old world look...
(Compare to http://www.pbase.com/davidandjohn/image/78082988 )
These high rises are going up very quickly...
(compare to a picture in 2005: http://www.pbase.com/davidandjohn/image/77619923 You can see the cranes just going up)
Or just turn to your right to see this: http://www.pbase.com/davidandjohn/image/78633287 where they are just now breaking ground on what I assume is a new development....