Staroměstská tržnice, Market hall in Old Town, Czech Republic.

Staroměstská tržnice is a market hall in Prague 1, set in a block between 28. října and Rytířská streets. Its elongated hall has a cast-iron structure in the form of a five-nave basilica, with a glass dome at the crossing of the naves. The passage to Rytířská Street is in a four-storey building with a Neo-Renaissance facade decorated with motifs of Prague markets.

The hall was built between 1894 and 1896 according to architect Jindrich Fialka's design and replaced four older buildings in Prague's commercial district. The project was part of the broader modernization of the Old Town during this period.

The passage from Rytířská Street runs through a four-storey building with a Neo-Renaissance facade decorated with motifs of Prague markets. Since October 2025 the interior has housed the Signal Space digital art gallery, and during its opening hours part of the building is open as a passage between Rytířská and 28. října streets, with a café in the public area.

The hall is easy to visit from the Old Town since it is centrally located and reachable on foot. The best time to explore is during daylight hours when natural light streams through the glass dome and illuminates the iron structure.

The original lighting system used Krizik arc lamps powered by a steam power plant until 1922. This was one of Prague's earliest examples of electrical infrastructure and shows how advanced the hall was when first built.