From those places, my favorite is the Simón Bolívar University, my University, my Alma Mater. Passing through the main door, after 12 years sonce my graduation, involves a very nice experience, many memories and good times. Crossing the corredors, buildings and gardens gives me the chance to recognize and remember that, for me as a researcher, there is still an infinite amount of things to understand, to learn, and to share.
Probably a part of you will remain in your Alma Mater, for example in your teacher's memories, and in some fellows that nowadays are teachers or professors, but for sure the spirit of your Alma Mater will be with you wherever you go, cause it defines the way you work and guides you and your next steps.
See you around.