Spain
Sant Vicenç is a fine example of a Benedictine monastery which was partly demolished. Like Sant Pere you can't always get inside but the exterior is pretty enough with a rotund chapel containing the altar.
Praça de Sant Vicenç
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Sant Pere church is a Romanesque jewel with outstanding architecture and peace. You can't always get inside but the exterior is pretty enough with carvings and windows.
Praça de Sant Pere
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Below the fortified bridge are the remains of the Jewish synagogue and
mikvah (ritual bath). The mikvah is behind a locked gate and can be seen only at certain times with a guide - ask at tourist information for times). The ruins are clearly marked and helpful signs show you where each room would have been. From the ruins there are good views of the fortified bridge and river Fluvía.
There is an easy walk which leads from the ruins and goes alongside the river to just past the fortified bridge.
The synagogue/mikvah is well signposted from the praça de libretat.
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The fortified romanesque 11th century bridge spans the river Fluvía and makes for an impressive entrance to Besalú on top of its hill. It's unique because it retains its central tollhouse and portcullis for that medieval feel. It is also the only curving medieval bridge in Spain. Children will love it for the portcullis and watchtower.
Besalú is 40km west of Girona and the buses to Olot from Girona all stop at Besalú.
Google map: tinyurl.com/ye66gdq