Rundetårn

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  • Address
    Købmagergade 52A, Strøget
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  • Phone
    33 73 03 73
  • Website
  • Transport
    bus: 350S
train: Nørreport

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Lonely Planet review

The Rundetårn is a splendid vantage point from which to admire the old city's red-tiled rooftops and church spires. This vaulted brick tower, 35m high, was built by Christian IV in 1642 and used as an astronomical observatory in conjunction with the nearby university. Although the university erected a newer structure in 1861, amateur astronomers have continued to use the Rundetårn each winter, which gives credence to its claim to be the oldest functioning observatory in Europe.

A 209m spiral walkway winds up the tower around a hollow core; about halfway up is a small exhibition hall housing changing displays of art and culture that is worth a visit if open.

Winter visitors who would like to view the night sky from the 3m-long telescope that's mounted within the rooftop dome should make inquiries at the ticket booth; the observatory is generally open Tuesday and Wednesday night. In September the observatory opens between and on Sunday.