The Chapel of St. Virgil near the Cathedral of St. Stephen represents one of the best-preserved Gothic interiors in Vienna.

It may seem a bit strange that this medieval chapel is located inside a subway station. In fact, the Chapel of St. Virgil was discovered during the construction of the subway in 1973 and was integrated into the Stephansplatz station of the U3/U1 lines. After a long restoration, it was reopened to the public in December 2015. The chapel was built around 1220/1230 and originally was meant to be the foundation for a chapel in proto-Gothic style. Around 1246, the chapel was decorated with mural paintings and sun crosses in the niches. In a later period, the church of Santa Maria Maddalena was built above it. Today it no longer exists, but the floor plan is still visible in the Stephansplatz pavement. The original construction was used by a wealthy Viennese merchant family as a place of reflection. It was also equipped with an altar dedicated to St. Virgil (hence the name).

The space next to the Chapel of St. Virgil now houses a permanent exhibition on medieval Vienna. The main theme of the exhibition is the chapel itself, its genesis and possible use, but also its position in the shadow of St. Stephen's Cathedral. Another central theme is the spatial development of Vienna from its Roman roots to the 16th century.