Designers showed a mockup of a new school building that could fit on the current Watertown High School site. One of the biggest questions with the project to rebuild or renovate Watertown High School is where the building will be located. Wednesday night, project architect Scott Dunlap, of Ai3 Architects, presented some of the options to the School Building Committee, along with some of the pros and cons of each site. “The challenge of the Building Committee over the next three months is not to decide on the design of the high school, or even pick a location, but to identify which sites would be viable for consideration,” Dunlap said. The three main sites being examined are the current high school site, the combined Victory Field complex/Department of Public Works Facility, and Moxley Field.