As students prepare to head back to school, the Centre for World-Class Universities released its 2015 Academic Ranking of World Universities (ARWU). And, once again, the organization named the University of Toronto as the number one university in Canada.

The University of Toronto has retained this title since the ARWU began ranking universities in 2003. While the school took the top spot in Canada, it's number 25 in the world behind the University of Wisconsin-Madison. Harvard is number one overall.

University rankings vary based on the outlet or institution conducting them. This year, the annual Maclean's rankings, for instance, named McGill number one in the medical doctoral category, meaning UofT took second place.

Rankings aside, all Torontonians can appreciate the beauty of UofT's St. George campus as well as the plethora of academic, athletic and cultural amenities the entire school brings to city life.

Do you think the University of Toronto is the best school in Canada? Let us know in the comments.

Marc Radford in the blogTO Flickr pool.