Located in, Mason, Ohio, United States.
King's Island opened to the public on April 29, 1972 and during the 1970's, this amusement park was visited by both the Brady Bunch and the Partridge Family.

Even if you're not a fan of King's Island, this video is a perfect retrospective of what the 1970's looked like.
I love how the female park employees almost look like "Burger King" employees of the 70's with those hats.

I also like how the park itself is themed with the characters from the world of Hanna Barbera. You can spot the Banana Splits (Fleegle, Bingo, Drooper and Snorky) as well as the Hair Bear Bunch. If the park still looked like this, I'd visit it.