People watch on as 3D graphics are projected onto Istanbul's famous Galata Tower during a 3D video mapping show promoting the Istanbul Youth Festival in Istanbul, Turkey on Thursday. The youth festival brings young people together from all across the country to take part in concerts, sports and arts activities. /VCG Photo

The Istanbul Youth Festival is a five-day event sponsored by private and state-run companies. The event, dubbed the largest of its kind, caters to the country's young population with a diverse array of activities, from concerts to sports events, exhibitions, games and panels. /VCG Photo

Galata Tower is one of the eye-catching landmarks in Istanbul. This nine-story tower is 66.90 meters tall and was the tallest building when it was built in 1348 during an expansion of the Genoese colony in what was then called, Constantinople. /VCG Photo