While thousands of people crash on the notoriously congested Capital Beltway each year, lethal accidents are clustered in just four dangerous zones, according to an analysis by The Washington Examiner. The 64-mile long highway is the site of nearly 3,000 accidents a year — about eight a day — and claims the lives of 18 people a year on average, according to a review of data provided by the National Highway Traffic Safety Administration and transportation officials and police in Virginia and Maryland.

But not all stretches of the Beltway are equally dangerous.