The Physics Building is home to Physics. Before September 2009, it was also the home of Geology and was known as the Physics/Geology building. The Geology Department moved to the Earth and Physical Sciences Building.
This is one of the coolest buildings on campus. The building used to be named "Physics Unit I" — even though there was no Physics Unit II at the time. Delusions of future grandeur, apparently.
It is located west of Mrak Hall and was built in 1971. If you walk past the Silo, away from the Quad, with Bainer Hall to your right and the Physical Sciences and Engineering Library to your far left, Physics/Geology is right behind Roessler Hall.
As you head down the stairs, you notice that the basement, unlike the other floors, has a peculiar marker. 
On the elevators, sometimes one or two of these is in there with you. It's a chair designed to show off the effect of the acceleration of the elevator. The chair is springy.
The residents of this building, by and large, encourage dumpster divers. Stuff on the loading dock is fair game.
It also has a *secret* passageway that you need to use an elevator (from a nearby *secret* lecture hall) to get to!
The Roof
You can also easily get on to the roof of this building... for an amazing view of the Campus:
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I wasn't able to get on the roof, any hints? I tried multiple stairwells and the door outside the 4th floor elevator and they were all locked =( -TheMadAggie
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They seem to have implemented a locked roof policy sometime in 2007. :( - Grant
A night-time view of the roof.
A morning-time view of the roof.
A huge panorama shot from the roof, 2004.
Panorama shot in the summer of 2005.
Annual shrinking panorama, Fall 2006.
A sundial on the roof.
It can read your mind.
