The International Park of the Children of the World, better known among locals as Kambanite (English for “The Bells”), was built near Sofia Ring Road and Mladost district in 1979 – the year when Bulgaria hosted UNESCO’s International Children’s Assembly Banner of Peace. The complex was built in just 30 day and consists of a huge 37-foot concrete monument and two arcs and nearly 100 bells, gifted by Zimbabwe, Vietnam, Mauritius, USSR (of course) and many more.