(Angela Weiss/AFP/Getty)
Some of the most positive changes have come with downsides that are straining the city.
By Hannah Natanson and Danielle Paquette
(Matt McClain/The Washington Post)
The changes to our urban design, architecture and everyday life are so profound we can hardly see them.
Have a moral dilemma or a personal problem you can't seem to solve? Don't miss Post columnist Carolyn Hax's latest column every day.