Copenhagen Sights That Earn a Ticket
Copenhagen’s royal sights cluster tightly enough to walk between most of them, which means the real decision is not where to go but which tickets to buy. Two of the best views in the city cost nothing at all, and one of the most photographed ones is smaller than photos suggest.
Rosenborg Castle and the Crown Jewels
Øster Voldgade 4A, built 1606-1624 as Christian IV’s summer retreat. The Long Hall holds the silver coronation lions and a narwhal-tusk throne; the underground Treasury displays the 1596 Christian IV crown and the emerald and diamond garnitures. Tickets are 150 DKK online, 155 DKK at the desk, under-18 free; a combination ticket with Amalienborg Museum runs 220 DKK. Book a timed slot for May-September visits at kongernessamling.dk/rosenborg .
Amalienborg Palace
Four identical rococo palaces around an octagonal courtyard, home to the Danish Royal Family’s winter residence. The Royal Life Guards march from Rosenborg Barracks at 11:30 and reach Amalienborg for the changing of the guard at noon daily, free to watch from the square. The Amalienborg Museum, inside Christian VIII’s Palace, is 125 DKK online. Book Amalienborg and Rosenborg together on GetYourGuide .
Christiansborg Palace
Seat of the Danish Parliament, the Prime Minister’s office and the Supreme Court, on Slotsholmen. The Combined Palace Ticket, 175 DKK, covers the Royal Reception Rooms, Bishop Absalon’s 1167 castle ruins beneath the building, and the Royal Stables. Christiansborg Palace tickets are searchable on Viator . The Tower, at 106 meters the city’s tallest, is entirely free but needs a free timed slot booked at taarnet.dk ; the view over the inner city and the Øresund is the best in Copenhagen and it costs nothing.
Rundetårn, dome and all
Købmagergade 52A, built 1637-1642 by Christian IV. A 209-meter spiral ramp climbs 7.5 times around a hollow core, built wide enough for horses hauling books to the library above. The astronomical observatory dome and its historic Fraunhofer telescope finished a full restoration and reopened to visitors on 12 August 2026. Tickets are 60 DKK adult, 20 DKK child, open daily 10:00-20:00 in summer, with Tuesday and Wednesday stargazing until 21:00 in winter.
Nyhavn, honestly
The 17th-century canal was dug by Swedish prisoners of war between 1671 and 1673; Hans Christian Andersen lived at three separate addresses along it. The promenade is free and open around the clock. Restaurants on the sunny, even-numbered side charge tourist prices for average food; walk the canal for photos and a drink, then eat properly in Indre By or Christianshavn.
The Little Mermaid, sized correctly
A 1.25m bronze statue on granite boulders at Langelinie Promenade, commissioned in 1913. Tour buses crowd the site from 10:00 to 17:00; arrive between 7:30 and 8:30 in the morning on foot or bike from Kastellet for a quiet photo instead. Free, open 24 hours.
Kastellet
One of Northern Europe’s best-preserved star fortresses, with 17th-century ramparts, a working military garrison and a historic Dutch windmill, free to walk daily 06:00-22:00.
The verdict
Buy exactly two tickets: Rosenborg for the Treasury, and skip a paid tower entirely in favor of the free one at Christiansborg. For the paid museum circuit that pairs well with this walk, see the Copenhagen attraction tours guide , or set the pace with the 2-day Copenhagen itinerary .