To have an idea of how Bologna should have been under the powerful family of the Bentivoglio - lords of the city for almost a century - you can't miss the visit to this beautiful church. The family chapel - built in 1463–1468 is a real gem.
The intimist atmosphere of this church is definitely unique. Get be guided by the majestic portico - also this, financied by the Bentivoglio family in 1477 - inside the building and take your time to admire the two chapels, enriched with some great paintings by some of the greatest artists of the time.
May sounds strange, but you're not allowed to take photos here.