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Palazzina with other buildings of this small island form a military core of the Austrian fortress. There is a relatively quiet atmosphere around there compared to the touristy civic centre of the town.
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Originally it was a 16th century fortress which is now a walled historical centre of the town. It's listed on the UNESCO World Heritage List.
Roman Excavations
Remains of Roman buildings (foundations) excavated in 1981. There are not much to see there, but it's free
Which connects the old centre with one of the town's beaches.
Take a bike ride along the former towpath of the river Mincio, connecting Peschiera with Mantua.
A big theme park is located in the south of the lake.