The Théâtre Antique is open daily from 9am to 6pm. The sound tour of the Arc de Triomphe is open daily from 9am to 8.30pm.
The Museum of Art and History is open from 10am to 6pm.

Early closure Thursday June 5: last entry at 4pm.
Early closure Friday June 6 and Saturday June 7: last entry at 4:30pm.