We packed out suitcases, checked out of the hotel, and grabbed breakfast at another excellent bakery, after which we headed to the Rundetaarn (the Round Tower), a 17th century structure built as an astronomical observatory.

One of the most special things about it is its equestrian staircase, which is not a staircase at all, but a 7.5-turn helical corridor l

which leads to the platform at the top,
  

and its towering views over Copenhagen.
   

 
  It was such an interesting an beautiful building...we were glad we got to check it out before leaving Copenhagen. We stopped at the interesting CopenHill power plant (forgot to take pictures) before heading to the airport and saying goodbye to Scandinavia. It was truly an amazing trip.