This is what it's like when almost 750,000 bikers descend on a sleepy South Dakota town

For one week every year, Sturgis, a small town nestled in the Black Hills of South Dakota, becomes motorcycle mecca.

Hundreds of thousands of bikers make the pilgrimage each year to the Sturgis Motorcycle Rally, one of the largest and oldest events of its kind in the world. It has been happening annually since 1938.

This year was the 75th anniversary of the rally. Check out the expected - and unexpected - sights of Sturgis.

[An earlier version of this post was written by Graham Rapier.]