@allate Elijah Hugh is the professor running the architecture courses. http://www.wesleyan.edu/academics/faculty/ehuge/profile.html
The courses fall under the Art Studio department. You can’t major in architecture specifically, but Wesleyan has a “university major” option where you can design your own major. I’d imagine you might be able to combine things from various departments, but it isn’t going to be the same as doing an architecture major at a school that specifically offers it.