Design
A Historic Journey: The Trek to Mecca
Millions of Muslims converge on the Saudi Arabian city.
Mecca is a city, but it's much more than that. Every year, millions of Muslims trek to the Saudi Arabian city on their Hajj, or religious pilgrimage. 3.5 million converge there, as they've been doing since the 7th century. According to The Atlantic:
For many more photos, see The Atlantic's lens blog.