The block behind Plaza de Armas was the original home of Havana's university, which stood on this site between 1728 and 1902. The university was once part of a convent. The contemporary modern office block you see today was built by Habaguanex in 2006 over the skeleton of an uglier 1950s office, the roof of which was used as a helicopter landing pad. It's been ingeniously refitted using the convent's original bell tower and baroque doorway – an interesting juxtaposition of old and new.
Many of the university's arts faculties have reinhabited the space, and a small museum/art gallery displays a scale model of the original convent and various artifacts that were rescued from it.