Roudnice nad Labem (; German: Raudnitz an der Elbe) is a town in the Ústí nad Labem Region in the Czech Republic, on the left bank of the Elbe River (Czech: Labe), 40km north of Prague. It has a population of approximately 13,000 and covers an area of 16.67 km². The town is situated near the site of Říp, the hill connected with the legend of Praotec Čech. A steel road bridge dating from the early 20th century spans the Elbe in Roudnice nad Labem. Its medieval predecessor was the third oldest stone bridge in Bohemia (after Prague and Písek) and the first bridge to connect both banks of the river. Roudnice nad Labem features a castle of late Romanesque origin, now reconstructed in Baroque architectural style. Civic amenities include a post office, a hospital, several shopping centres, schools, pharmacies, public and municipal libraries, a cinema, a swimming pool, an ice hockey arena, and football and athletic stadiums. Roudnice airport is located near the southwestern edge of the city and hosts the Memorial Air Show every other year.