The crossword solutions for the term CITY CZECHOSLOVAKIA are Oslo (4 letters) and Havel (5 letters). Oslo is the capital of Norway, located on the southern coast of the country. It is the most populous city in Norway, with a population of over 658, 000 people. Havel is a city in the Czech Republic, located in the Central Bohemian Region. It is the largest city in the region, with a population of over 70, 000 people.