I have visited probably close to 100 campuses in my travels. My choices would probably be …
Wisconsin
Chicago
Harvard
Colorado
I’ve been to a lot, too, and I agree with your choices. I’d add Virginia.
Sorry for hijacking this… but… Do you know how many people choose a university based on the physical appearance of the campus? It drives universities to spend money, LOTS of money on projects that have nothing to do with education. Bah. Drives me crazy. Stop appreciating this money wastefulness!
Sorry.
As for the OP… which Wisconsin or Colorado?
Well technically it’s a college but - Wellesley College is gorgeous.
I believe these campuses are pretty much the same as when they were built. So, I don’t think any “new” money is going into their aesthetics, at least not more than any other schools.
If I said U of Wisconsin, what town would come to mind first? Ditto U of Colorado.
Boston University!
Ahahahaha. No.
Actually, I found Princeton to be particularly attractive, and most of UChicago is really nice.
In Montreal, I really like McGill’s setting, a large swath of parkland smack int he middle of downtown; and our Arts building, Redpath Library, Islamic Studies Library, Redpath Museum, Birks Building, and Royal Victoria Hospital are quite attractive.
Unfortunately, several buildings (including the McLennan Library, Leacock Building, Shatner Building, and shudder Burnside Building) are vintage 60s brutalist horror.
I agree that Wellesley is beautiful, my best friend is a student there. It’s so…majestic. I don’t like the science building though. Tower (I think that’s what those dorms are called…) is beautiful.
Indiana University in Bloomington is pretty, at least in central campus.
Even 10 years after graduating, I still think that Colby College has a beautiful campus.
One of our rivals, Bowdoin also has a beautiful campus, from what I remember from a visit or two during four years.
Yes, that’s one I forget to mention. I was very impressed (surprised) with the aesthetics of Indiana U.
I would vote for Dartmouth (where I went to graduate school) or the University of Virginia (for its general beauty and architecture).
The campus of the University of Queensland on the Brisbane River at St Lucia is pretty stunning.
For best overall views, I’d nominate Victoria University of Wellington.
Well…Oxford. Or do we have to stick to America? If so I was going to say:
And I still think so. Although when I took my Oxford grad SO there he was couldn’t stop laughing at the confluence of archtecheral styles…many of them dating from before Princeton was a town let alone a college.
And of course I have to mention my alma mater, NYU. Well, the campus is lower Manhattan, the most beautiful place on Earth 
.
Can I make a recommendation on behalf of a friend who doesn’t frequent the board? St Andrews. A wonderful place. It’s got the ‘ye olde wolde’ aspect, without the tourists. It’s got the North Sea (which is perfect for sunrises, should you want to see them). Aggghg, I chose to go to Manchester…
Well, I’d have to nominate my school, St. John’s College, both campuses. The Annapolis one is nice, cute, waterfront property, big sprawling laws, etc. The Santa Fe campus is literally built into a mountain, all adobe, and a huge amount of our acreage literally borders on a nature preserve.
Also, Warren Wilson college is jaw-droppingly beautiful. I applied there, and when my mom and I drove onto the campus to visit, we had some bluegrass music playing inthe car - it literally felt like we were in a PBS documentary.
Northwestern University, in Evanston, IL (just above Chicago), has a gorgeous campus, especially down Sheridan. Some of the buildings are very nice too.
WRS
I will put in votes for Duke University and for Oxford. I looooved the Harvard University bookstore, but I didn’t really see the aesthetics as setting any records.
I’d go with Siena College, where I work, and American University, where my daughter goes to school. Lots of green, nice harmony among buildings. AU also feels very cozy due to its small size.
Wow! I agree.
Another stunner, different setting: Pepperdine, in Malibu, CA