Pedestrians in front of the Athens Concert Hall in the city center gaze at one of the bovine sculptures included in the ‘Cow Parade’ exhibition, which was unveiled yesterday. ‘Cow Parade’ is the world’s biggest outdoor art exhibition and has already been hosted by 33 other countries since it was launched in Zurich in 1998. Some 90 fiberglass cows, painted in various colors and styles, have been placed around the center of Athens and will be on display until next month. After that, they will be sold to raise money for charity.