Roman Theatre and Museum of Orange: The Roman Theatre of Orange was originally covered by a roof structure dating from the 14th century AD, [but] was destroyed by fire.
[A new stage roof was inaugurated in June 2006]. [Made of] an immense [metal structure, it] supports the over 1000m² [of] glass plates. This roof weighs 200 tonnes, 50% less than a timber structure. To preserve the monument, it does not rest on the ancient stones but on a gigantic 61.70 metre long cross beam.

The above photograph of the Theatre is by Gromelle Grand Angle.