European Night of Museums at Giulio II Castle and the Museum of Ships

On Saturday 23 May 2026, Giulio II Castle and the Museum of Ships in Fiumicino take part in the European Night of Museums with extended evening opening hours and a symbolic entrance fee, allowing visitors to explore the site in a different evening atmosphere.

Hours and tickets

• Date: Saturday 23 May 2026
• Giulio II Castle: extended opening from 19:30 to 00:30 (last entry 00:00)
• Museum of Ships: open from 19:30 to 00:20 (last entry 23:50)
• Ticket: symbolic fee of €1

The exhibition "In hoc Signo"

The Castle's first floor houses the papal apartments where the exhibition In hoc Signo. Christian testimonies between Ostia and Portus is on display. The show runs from 21 May to 21 November 2026 and features little-known artifacts and items exhibited for the first time, documenting the spread of Christianity from Late Antiquity to the early Middle Ages in the Ostia and Portus area.

Why attend

• See artifacts that are rarely displayed to the public.
• Evening visits that enhance the monument's atmosphere.
• Historical insights into cultural changes between the 4th and 5th centuries.

Practical information

Entrance to the exhibition is included in the monument ticket. For information and reservations: [email protected].

Location: Piazza della Rocca, 13, 00119 Ostia Antica (RM), Italy.