The Buffalo Bill Historical Center, one of the top attractions in Buffalo Bill’s Cody/Yellowstone Country, is open daily from May 1-September 15 from 8 a.m. to 6 p.m. A two-day admission for adults is $18, seniors and college students are $16, youth ages 6-17 are $10, and ages 5 and under get in free. And believe me, you’ll want to use the two-day admission – you’ll be blown away by how huge the facility is! (And by the way, it’s open year round!)