Dating from the 17th-century, the Round Tower (or Rundetaarn) is the oldest functioning astronomical observatory in the world and offers tourists the chance to walk up its spiral brick walkway to reach the top, 36m above ground level. Offering tourists a good point of reference or simply an ideal meeting spot, from the top you have an uninterrupted view over the old part of the city. Not ideal for the less mobile traveller, however. #view #history #tower