The 7^th century Ruthenian settlement was captured by king Casimir the Great in mid-14^th century and became known by its present name. The city's highlights include an early Baroque Bernardine Monastery, with the beautifully furnished church and mausoleum of the Ligeza family. Another architectural gem is the Lubomirski Palace and adjacent 17^th century castle. Also worth seeing is the Market Square, recently restored, with picturesque tenement houses.

Source: http://en.wikipedia.org/wiki/Rzeszów

In front of the Town Hall there is an entrance to the biggest attraction of the city – the Underground Tourist Route "Cellars of Rzeszów". It consists of 25 interconnected cellars and 15 dungeons creating a continuous walkway – 369 m long at three underground levels.
Internal design shows all the functions that the cellars used to have in the past and, what is more, by making use of copies of historical weapon, tools and equipment it presents the history of everyday life of Rzeszów inhabitants.

http://www.erzeszow.pl/en/

http://en.wikipedia.org/wiki/Rzeszów