You probably pass by Old Main at least once a day, but how often do you get to go inside of it? The prominent yet rather mysterious building doesn’t generally offer current students a whole lot, being filled with administrative offices.

That changed yesterday afternoon when the Penn State Lion Ambassadors held their annual Old Main Open House. The afternoon was filled with games, trivia, and appearances by the Pennharmonics, the Blue Band Trumpets, Penn State Majorettes, Blue Sapphire PJ Maierhofer, and the Nittany Lion. But the highlight of the afternoon for most attendees was the tour of Old Main.

The tour takes you through various floors of Old Main and ends with a trip up to the Bell Tower, where visitors can experience unparalleled views of campus and downtown State College. Before you get to the bell tower, though, you meet several costumed Ambassadors along the way who talk about what life at Penn State was like back when Old Main was the entirety of campus.

Staff photographer Charlotte Kohl was at the Open House and took the tour. Her pictures are below.