'''Trinitatis Complex''' is located in central [[Copenhagen]], [[Denmark]]. The 17th-century building complex includes a church, university library, and astronomical observatory. Its features include the [[Trinitatis Church]] and the [[Rundetårn]] astronomical observatory tower,<ref name="Mouritsen2010">{{cite book|last=Mouritsen|first=Lone|title=The Rough Guide to Copenhagen|url=https://books.google.com/books?id=bof5iM46YBwC&pg=PA50|accessdate=15 December 2012|date=3 May 2010|publisher=Penguin|isbn=978-1-84836-958-0|pages=50–}}</ref> Rundetårn itself notable as Europe's oldest functioning observatory.<ref name="Bergmann2011">{{cite book|last=Bergmann|first=Sigurd|title=Theology in Built Environments: Exploring Religion, Architecture, and Design|url=https://books.google.com/books?id=3aOsXF5R64gC&pg=PA173|accessdate=15 December 2012|date=30 November 2011|publisher=Transaction Publishers|isbn=978-1-4128-4580-9|pages=173–}}</ref> The complex is of a [[Dutch Baroque architecture|Dutch Baroque]] design by [[Hans van Steenwinckel the Younger]].
