Visitors view the introduction of the art of Chinese grottoes at Zappeion Hall in Athens, Greece, May 11, 2024. The International Touring Exhibition of the Digital Restoration of the Tianlong Mountain Grottoes was held in Athens and attracted many visitors. (Xinhua/Marios Lolos)

Visitors view an exhibit of Tianlong Mountain Grottoes at Zappeion Hall in Athens, Greece, May 11, 2024. The International Touring Exhibition of the Digital Restoration of the Tianlong Mountain Grottoes was held in Athens and attracted many visitors. (Xinhua/Marios Lolos)

A visitor uses a VR device to view the art of Chinese grottoes at Zappeion Hall in Athens, Greece, May 11, 2024. The International Touring Exhibition of the Digital Restoration of the Tianlong Mountain Grottoes was held in Athens and attracted many visitors. (Xinhua/Marios Lolos)