 Complete the following phrase:  Amberg exhibited at Charlottenborg Spring Exhibition 1863-1884, in Exposition Universelle 1878 in Paris, the Nordic Industrial, Agricultural and Art Exhibition 1888 in Copenhagen, and Copenhagens City Hall exhibition 1901. Amberg won a competition to design Christiansborg Palace in 1887. Ambergs design was used in the replacement building in Højbro Plads after St Nicholas Church was destroyed in the 