They're sending money, medical supplies and even a makeshift border patrol.
Heavy flooding inundated the city, making transportation virtually impossible.
Rio grapples with a public urination problem during Carnival.
Protests, new hotels and more news.
The city says the university should shoulder more of its huge budget shortfall.
Baku police officers grapple with an unlikely problem.
The city renovates its zoo, and other news.
A new documentary about an increasingly urbanized world.
Gas prices are up by 7 cents this week and other news.
A round-up of the best comments from this week's The Big Fix.
Here, citizens police themselves, at least as far as speeding is concerned.
Photos of the city's lovely, wild graffiti scene.
They imagine a historic core filled with low-level buildings and parks. Is this the way to revitalize the devastated city?
Looking for the most expensive office space in the world? Look no further than downtown Vancouver.
The case of some missing auctioned goats.
A specialty salon offers an expensive therapy to whiten the skin.
A lecture on the Portland Zoo's breeding programs just in time for Valentine's Day.
ABC News tracked down the couple that inspired the movie Sleepless in Seattle, and more news.
The joy of eating at one of New York's classic neighborhood spots.