
Botanical Garden & Palm House
128 Gothersgade, Copenhagen, København K, 1123, Denmark
Copenhagen's Botanical Garden has existed in one form or another since 1600, making it over four centuries old, but it only settled into its current location in 1870 after two previous moves.

Copenhagen City Hall
1 Rådhuspladsen, Copenhagen, København V, 1550, Denmark
Copenhagen's City Hall was designed by Martin Nyrop and completed in 1905 in the National Romantic style, drawing heavily on the medieval town halls of Siena and other Italian cities.

Round Tower
Købmagergade 52A, 1150 København K
King Christian IV — who seems to have built half of Copenhagen — completed the Round Tower in 1642 as Europe's oldest functioning astronomical observatory, and the design choice that makes it unique is the absence of stairs.
Explore science in Copenhagen
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