U.S. College Sports - Which Big Ten football stadium has a pink visitors' locker room?

It looks like the Iowa Hawkeye's...

"Iowa's Visiting Locker Room is Entirely Pink, and Opposing Teams Hate It"

https://fanbuzz.com/college-football/big-ten/iowa/iowa-pink-locker-rooms/

Since the website listed by elburcher does not work for visitors from outside the US here is an alternative:

https://www.youtube.com/watch?v=p-g5lx3-mVI&t=16s

The idea of painting the visiting team's locker room pink (presumably to make the players calmer and less aggressive) was discussed on an episode of the UK television show "QI", a show that deals with things that are "quite interesting". I can't find the episode, but I do remember that they said that the practice was disallowed in the US, or rather that both teams's locker room need to be the same color.

I'm outside the US and can't access the first link, but the Youtube video in the second answer is from 2008, perhaps before the rule about same-color rooms came into force.

Here is a website with the full theory and studies of pink rooms. The current view is it may work but wears off after about half an hour. Since Iowa's colour scheme the rules have changed to making home and away locker rooms to be painted the same colour, so if one is pink they will both have to be.

https://www.colormatters.com/color-and-the-body/drunk-tank-pink