The sweetest place on Earth is gearing up for a milestone.

FOX's Lilian Woo reports: 

One very lucky chocolate lover getting the closest thing to a real life golden ticket...

Visitor number 100 million to Hershey's Chocolate World in Pennsylvania in for a sweet prize: A year's supply of Hershey's candy.

Among the other perks, the title of "Mayor of Chocolate World" for the day and the chance to help name the calf in the barnyard scene in the chocolate world ride. 

The free attraction which offers a behind the scenes look at the company's history has had more than 99.9 million visitors since it opened in 1973.

And anyone who posts chocolate world visit pictures on social media using the hashtag 100 million memories gets a free chocolate bar during a future visit.

Lilian Woo, FOX News.

Follow Lilian Woo on Twitter: @LilianNY