What is remarkable about Ostrowiec is that the original urban framework of the central part of the town has survived, with its street system starting in its corners. This makes it a prime example of a typical town created at the end of the 16th century.

If you are staying in Ostrowiec, do not miss the following sights: the Baroque St Stanislaw Biskup Church dating from the end of the 16th century with its adjoining cemetery laid out some two centuries later, the St Michaels Church from the beginning of the 17th century and reconstructed in the 20th century in its present neo-baroque style, and the remnants of the 18th-century Jewish memorial park. Other spots worth visiting include the old palace of the Wielkopolscy family, erected in the second half of the 19th century amidst a beautiful park; and the building of the main office, easily recognisable due to its immense Palladian colonnade frontage.

Located in the village of Baltow, not far from Ostrowiec, is the only Jurassic Park in Poland hosting exhibitions of Allosaurus, Triceratops and other species of prehistoric reptiles. A Tyrannosaurus rex model welcomes everyone to come in and climb over it, and you can take a ride on a raft down the river from here.