GRAND RAPIDS (WZZM) -- There certainly was a sense of nostalgia as generations of Grand Rapids Central High School alumni entered Michigan's oldest high school Saturday.

Former students reunited with teachers, sharing tears, laughter and memories.It's a bittersweet moment however, as graduates of Grand Rapids Central's 2012 class are the last inthe school's150 year history.

The Grand Rapids Central building itself is not closing, but there will no longer be a high school presence in the space. Many alumnus hope the location will be preserved by the state.

"It's still a wonderful place, and I hope, that whenever it reaches the point where they have no students here, that the building stays forever," said former Grand Rapids Central principle Earl Mandeville. "They ought to make it a historical building, that's my recommendation."

Saturday's event also celebrated the first graduating class of the new school of Health and Science Technology, housed within the Central High building.