http://photos.metrojacksonville.com/photos/4374935711_dQntr8p-900x1000.jpg
The clock tower lighthouse-like building (center-left)
It was the post office. One of the biggest losses DT imo.
Where was it located?
The NE corner of Hogan and Forsyth Streets. Here's a better picture:
(http://photos.metrojacksonville.com/photos/3715947383_BmXqbKB-600x2000.jpg)
http://www.metrojacksonville.com/article/2014-nov-5-places-that-prove-we-dont-build-them-like-we-used-to/page/4
Thank you. Such a shame it was demolished.