An employee of a pastry shop presents a chocolate sweet at the 4th Chocolate Fest in Athens, Greece, Feb. 11, 2023. Photo: Xinhua

Visitors enjoy chocolate waffles at the 4th Chocolate Fest in Athens, Greece, Feb. 11, 2023. Photo: Xinhua

A pastry chef prepares a slice of a chocolate cake at the 4th Chocolate Fest in Athens, Greece, Feb. 11, 2023. Photo: Xinhua

Visitors enjoy snacks at the 4th Chocolate Fest in Athens, Greece, Feb. 11, 2023. Photo: Xinhua

A visitor shops at a stand of the 4th Chocolate Fest in Athens, Greece, Feb. 11, 2023. Photo: Xinhua

People visit the 4th Chocolate Fest in Athens, Greece, Feb. 11, 2023. Photo: Xinhua

An employee of a pastry shop prepares a chocolate waffle at the 4th Chocolate Fest in Athens, Greece, Feb. 11, 2023. Photo: Xinhua