Podziemna Trasa Turystyczna w Przemyślu, Underground tourist route in Przemyśl, Poland

The Podziemna Trasa Turystyczna w Przemyślu is a 120-metre underground route beneath the Market Square, linking two-level merchant cellars under the Town Hall at Rynek 1 with a 17th-century collector running under the square and Mostowa Street. The oldest cellars date from the 15th century, and the deepest point lies 10 metres below ground. The exit is on the Market Square by building no. 5.

The idea of linking Przemyśl's cellars into a route arose around 2001, initially planning to connect houses at Rynek 1 and 11. In 2012 the first renovated section, the Piwnica Artystyczna pod Niedźwiadkiem, opened. The full route opened on 1 April 2015, funded by the city budget and the Podkarpackie regional conservator. It combines merchant cellars, the oldest from the 15th century, with a 17th-century collector.

The cellars take their name from the merchants who stored goods in them; the oldest reach back to the 15th century. The route links two levels of cellars under the Town Hall at Rynek 1 with a 17th-century collector running beneath the market square and Mostowa Street. The cellars are managed by the KLAVO company.

Entry is at Rynek 1 and the exit at Rynek 5, on the market square. The whole route is about 120 m long and reaches 10 m below ground. Visits run in groups led by a guide, so unaccompanied walking is not possible. The site is open all year except Mondays.

The exit lies on the market square at the level of house no. 5, while the entrance is at Rynek 1, so visitors pass beneath the square itself. The oldest merchant cellars on the route date from the 15th century, older than the 17th-century collector they join.