
Bangkok —
Bangkok has a sparkling metro system, river ferries and even a network of canals. But it still has the worst evening rush hour traffic in the world.

Istanbul —
Istanbul, with its bridges connecting Asia and Europe, has the world's second-worst evening rush hour.

Mexico City —
Mexico City is notorious for its terrible traffic. Things aren't getting better.

Moscow —
Driving through Moscow's ring-like highway system during the evening hours is for patient types -- traffic turns the typical half hour evening commute into a 57-minute affair.

Saint Petersburg —
This "Paris of the East" boasts world-class palaces, churches and museums. And traffic.

Bucharest —
Bucharest's inclusion on the list might surprise some, but it makes perfect sense to its drivers.

Chongqing —
Chongqing is the first of four Chinese cities on TomTom's list.

Shenzhen —
In the 1980s, Shenzhen was the first Chinese city to be designated a Special Economic Zone. Now, the city bills itself as China's "Silicon Valley."

Guangzhou —
Guangzhou is situated just north of Shenzhen in China's Pearl River Delta.

Zhuhai —
Zhuhai, a stone's throw from Shenzhen and Guangzhou, completes a bad-traffic trifecta for southern China.

Los Angeles —
The drive along the Pacific coast is one of the most scenic in the U.S., but that's of little comfort to Los Angeles drivers.

Chengdu —
Chengdu, the capital of China's Sichuan province, is best known for its incredibly spicy cuisine and gigantic panda research center.


