Commuters inside a metro station during the inauguration day of the Thessaloniki metro, in Thessaloniki, northern Greece, Saturday, Nov. 30, 2024. (AP Photo/Giannis Papanikos)

Commuters stand around an archaeological site located inside the Venizelou metro station during the inauguration day of the Thessaloniki metro, in Thessaloniki, northern Greece, Saturday, Nov. 30, 2024. (AP Photo/Giannis Papanikos)

Commuters make their way around an archaeological site located inside the Venizelou metro station during the inauguration day of the Thessaloniki metro, in Thessaloniki, northern Greece, Saturday, Nov. 30, 2024. (AP Photo/Giannis Papanikos)

Commuters walk around a metro station during the inauguration day of the Thessaloniki metro, in Thessaloniki, northern Greece, Saturday, Nov. 30, 2024. (AP Photo/Giannis Papanikos)

Commuters use the ecalator at a metro station during the inauguration day of the Thessaloniki metro, in Thessaloniki, northern Greece, Saturday, Nov. 30, 2024. (AP Photo/Giannis Papanikos)

Commuters at a metro station during the inauguration day of the Thessaloniki metro, in Thessaloniki, northern Greece, Saturday, Nov. 30, 2024. (AP Photo/Giannis Papanikos)

Commuters stand around an archaeological site located inside the Venizelou metro station during the inauguration day of the Thessaloniki metro, in Thessaloniki, northern Greece, Saturday, Nov. 30, 2024. (AP Photo/Giannis Papanikos)

A passenger takes photographs from inside a metro wagon during the inauguration day of the Thessaloniki metro, in Thessaloniki, northern Greece, Saturday, Nov. 30, 2024. (AP Photo/Giannis Papanikos)

Commuters use escalators at a metro station during the inauguration day of the Thessaloniki metro, in Thessaloniki, northern Greece, Saturday, Nov. 30, 2024. (AP Photo/Giannis Papanikos)

Commuters inside a metro wagon during the inauguration day of the Thessaloniki metro, in Thessaloniki, northern Greece, Saturday, Nov. 30, 2024. (AP Photo/Giannis Papanikos)