We had spent 2 weeks in Copenhagen several years ago on a home exchange, so we didn't feel a big need to run around and see everything. The ship docked within an easy and pleasant walk of the city, so there was no need to use a Hop on Hop off bus.
Denmark is a Constitutional Monarchy; it is both a Capitalist State and a Welfare State. The country includes Greenland and the Faroe Islands and is part of the Nordic States which also includes Sweden, Finland, and Norway. Denmark has more than 1400 islands, making for very expensive infrastructure. Germany is to the South; all other borders are water. During WWII, Denmark tried to protect its Jews, sending many to Sweden. They surrendered in 1940 in only 2 hours. Denmark is part of the EU, although Greenland and the Faroe Islands are not. The population is 5.5 million; they are active in NATO and the UN. They have the highest level of income equality and offer free education through college and of course free health care. Their VAT is 25%. A survey has shown that it is the happiest country in the world; it is also the least corrupt and has very low unemployment.
Copenhagen is a wonderful city for bikers. But watch it when crossing the street! You could be run over. There are bike lanes reserved for them and they have the right of way.
Greeting us at the harbor are the beautiful windmills providing much of their electrical power needs. We were very lucky to have a bright sunny day.