People visit the Museum Embankment Festival 2018 in Frankfurt, Germany, on Aug. 24, 2018. During this three-day event, Frankfurt pays tribute to its magnificent museum landscape and majestic waterway with a unique combination of culture and the arts, music, dance, theatre and cuisine. (Xinhua/Luo Huanhuan)

People visit the Museum Embankment Festival 2018 in Frankfurt, Germany, on Aug. 24, 2018. During this three-day event, Frankfurt pays tribute to its magnificent museum landscape and majestic waterway with a unique combination of culture and the arts, music, dance, theatre and cuisine. (Xinhua/Luo Huanhuan)

People visit the Museum Embankment Festival 2018 in Frankfurt, Germany, on Aug. 24, 2018. During this three-day event, Frankfurt pays tribute to its magnificent museum landscape and majestic waterway with a unique combination of culture and the arts, music, dance, theatre and cuisine. (Xinhua/Luo Huanhuan)

A singer performs during the Museum Embankment Festival 2018 in Frankfurt, Germany, on Aug. 24, 2018. During this three-day event, Frankfurt pays tribute to its magnificent museum landscape and majestic waterway with a unique combination of culture and the arts, music, dance, theatre and cuisine. (Xinhua/Luo Huanhuan)

People visit the Staedel Museum during the Museum Embankment Festival 2018 in Frankfurt,Germany, on Aug. 24, 2018. During this three-day event, Frankfurt pays tribute to its magnificent museum landscape and majestic waterway with a unique combination of culture and the arts, music, dance, theatre and cuisine. (Xinhua/Luo Huanhuan)