October 2, 1981
The Glass Block department store, an institution at the corner of Superior Street and Second Avenue West in downtown Duluth for decades, has been a frequent News Tribune Attic post topic. You can read more about it here, here, here and here.
The downtown Glass Block store closed in 1981 and was torn down later that year to make way for what is now the US Bank building.
A second Glass Block store opened in the Miller Hill Mall in 1973. The Glass Block name lingered on at that location until fall 1998, when it was sold and converted into the present-day Younkers store.
Here is one more look at the demolition of the downtown store, from the same day as the photo above: