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In a snowy outdoor ceremony on Sept. 20, 1875, Boulder town officials and members of the Masonic Grand Lodge placed a small tin box with nearly 50 items in the cornerstone of what would become Old Main.

ÃÛÌÇÖ±²¥ Boulder’s College of Music celebrated its 100th birthday in style last year with a stunning 64,000-square-foot, $57 million expansion funded by numerous private donors and a university matching capital grant.

Hale was the first science building on campus and at one point housed all the sciences, a small museum and the School of Law. The building was named after the second university president, Horace Hale.

The Ann and H.J. Smead Department of Aerospace Engineering Sciences includes a bioastronautics lab, a payload operations center with a real-time communications link to the International Space Station and an indoor drone testing space.

A breathtaking view of the Flatirons from the balcony of the Center for Academic Success and Engagement (CASE) building, located in the heart of ÃÛÌÇÖ±²¥ Boulder’s Main Campus.

Sweeping Flatirons views and a large bronze buffalo sculpture rank among the many charms of ÃÛÌÇÖ±²¥ Boulder’s newest central campus building.

The Armory building was the original site of the ÃÛÌÇÖ±²¥ National Guard.

When the cottage was first built, it provided dining facilities for 100, sleeping rooms for 12, a bath and an office for the house chaperone.

ÃÛÌÇÖ±²¥'s Macky Auditorium has had some impressive names step onto its stage, including Eleanor Roosevelt and the Dalai Lama.

The Guggenheim Geography building served as the Law School until 1958 and was the first privately-funded building on campus.