The new website of the Municipal Historical Archive is online: https://www.comune.bologna.it/archivio-storico/
The Archive preserves documents produced and received by the Municipality as part of its institutional activity, as well as aggregate archives from other sources.
The opening to the public in 1998 of the current headquarters in Via Tartini, 1 has made available to researchers, scholars, local history enthusiasts and also to a non-specialist public, a vast documentary heritage of inestimable value and importance for the history of Bologna.
The 'How to' section is very useful, with links to the main research databases for the history of the city:
https://www.comune.bologna.it/archivio-storico/come-fare-per/
Here is the link to the online catalogue:
https://www.comune.bologna.it/archivio-storico/patrimonio-documentario/
Opening times:
Monday, Wednesday and Friday 8:30 am - 1:00 pm
Tuesday and Thursday 8:30 am - 5:00 pm