If you are the one, who is interested in visiting museums and entering all possible touristic attractions or simply spending your holey coins in the restaurants, you would find what to do for at least a couple of days. But if you are not interested in something particular and mostly you are interested in putting a tick on a long European capitals list you have visited – 3 hours will be more than enough.
It’s not a big city, not bigger than Vilnius. What makes it special is the water around it, the same thing what makes it windy and less pleasant for the long autumn walks. In the beginning it felt like I was back to Vienna. It’s a perverse feeling and sometimes you just can’t get rid of it.
We started our sightseeing day walking down the Strøget, the world's longest pedestrian street. In my opinion it’s not that long, it’s a simple shopping street, which looks the same as Kärntner Straße in Vienna.
Surprisingly fast, considering the fact that it suppose to be the world's longest pedestrian street we reached Nyhavn, those who’ve been to Amsterdam (not me) will probably find some similarities with the Dutch capital city. 
Not so far from Nyhavn we’ve found the winter home of the Danish royal family – Amalienborg Palace, which looks like St. Peter’s Basilica in Vatican, just 134 years younger and built in the different architectural style…
The next place we visited was Kastellet, a fortification constructed in the form of pentagram. Now it’s a public park, but still owned by The Danish Ministry of Defence. I would say it looks better on a map and there is nothing interesting there unless you owe a helicopter… Unfortunately The Little Mermaid was visiting Shanghai, so we went to see the Rosenborg Castle built in XVII century, which was not visiting Shanghai, but was covered from the tourists for some kind of renovation works instead…
We passed Copenhagen City Hall and the Round Tower, but skipped an idea to visit Freetown Christiania, a self-proclaimed autonomous neighborhood famous for its open cannabis trade. Slowly short sunny sightseeing turned to a long windy rambling and disappeared with Sina in one of those InterCity trains leaving Copenhagen.
Copenhagen definitely has something from a lot of places, but nothing what would make it the city I would like to go back.
