Think New York City is expensive?
What about London, or Dubai?
If you're looking for the world's most-expensive city -- you need to turn to the poorest continent.
Global consulting firm Mercer says Luanda, in the African nation of Angola, is the priciest city in the world.
On average, you'll pay 28 U-S dollars for a new C-D -- or 20 bucks for a club sandwich and a soda!
Or if you're looking to rent -- brace yourself -- you'll pay seven-thousand dollars per MONTH for a two-bedroom apartment!
It's the second year in a row Luanda has topped Mercer's list.
Coming in number two is Tokyo, followed by another African city -- N'Djamena, in Chad.
New York remains the costliest American city, but it's ranked just 32nd worldwide.