An accessible summary of how the Arc is maintained and restored, from surface care to structural monitoring.

Conservation balances stability and appearance — ethics guide minimum intervention.
| Interval | Task |
|---|---|
| Quarterly | Visual inspection |
| Annual | Cleaning trials; mapping |
| 5‑year | Structural survey; instrumentation review |


パリを愛する旅の書き手として、勝利の野心から静かな追憶まで——凱旋門の物語に結び付けるためのガイドをまとめました。
Loading comments...