Norris Hall at Virginia Tech has been closed since a gunman killed 30 students and professors there, on April 16, 2007, but on June 14, it reopens, giving media tours of the newly repaired building.
Many relatives of those injured and killed were allowed private visits to Norris Hall.
University officials have said no classes will ever meet in the building again.
Engineering researchers will use sophisticated laboratory equipment there that could not be moved.
The formal reopening of the building is scheduled for June 18.