It's Louisiana's largest science center, and on Saturday they celebrate a new milestone.
That morning Sci-Port welcomed it's 3 millionth visitor.
It happened shortly before noon.
The lucky winner was 4-year-old Evelyn Watts.
Evelyn will receive a prize package that consists of a lifetime membership to Sci-Port, passes to several Sci-Port camps, and gift cards to several local attractions and restaurants.
Since opening the center's doors in 1998, Sci-Port has served, on average, 200,000 visitors each year.