The story of Olympic Stadium began in 1927, when City of Helsinki and several sport associations created the Stadium Foundation. The purpose of foundation was to build an adequate venue for the summer olympics. Construction of the Olympic Stadium began in 1934 and it was completed in 1938. It was designed in functionalistic style by the architects Yrjö Lindegren and Toivo Jäntti.
The stadium was built to host the 1940 Summer Olympics, which were moved from Tokyo to Helsinki before being cancelled due to World War II. After 12 years delay the XVth Olympic Games were finally held in Helsinki Olympic Stadium in 1952. The stadium was also the venue for the first World Athletics Championships in 1983 as well as for the 2005 World Championships in Athletics. It is also the home stadium of the Finland national football team.
Olympic Stadium is still in active use. The National Sports Museum is also situated to the stadium and the 72 meters high tower is popular place to see the nice view over the downtown of Helsinki.
The Church of St Donatus name refers to Donatus of Zadar, who began construction on this church in the 9th century and ended it on the northeastern part of the Roman forum. It is the largest Pre-Romanesque building in Croatia.
The beginning of the building of the church was placed to the second half of the 8th century, and it is supposed to have been completed in the 9th century. The Zadar bishop and diplomat Donat (8th and 9th centuries) is credited with the building of the church. He led the representations of the Dalmatian cities to Constantinople and Charles the Great, which is why this church bears slight resemblance to Charlemagne's court chapels, especially the one in Aachen, and also to the Basilica of San Vitale in Ravenna. It belongs to the Pre-Romanesque architectural period.
The circular church, formerly domed, is 27 m high and is characterised by simplicity and technical primitivism.