2 Best Sights in Denmark

Since opening in 2019, this forest tower has been one of the most popular day-trips from Copenhagen. The 45-meter (148-foot) tall spiraling wooden structure towers over the trees below, and it’s as much an architectural masterpiece as it is a way to experience nature from a new angle. It’s part of Camp Adventure, a nature camp with a climbing park and a café. The tower is open year-round.

Price discounts for the climbing park are available online; children younger than 15 also pay a lower rate for the climbing park.

Instead of climbing the stout Round Tower's stairs, visitors scale a smooth, 600-foot spiral ramp. Supposedly, Peter the Great of Russia once ascended this ramp on a horse alongside his wife, Catherine, who took a carriage. From its top, you enjoy a panoramic view of the twisted streets and crooked roofs of Copenhagen. The unusual building was constructed as an observatory in 1642 by Christian IV and is still maintained as Europe's oldest such structure.

The art gallery has changing exhibits, and occasional concerts are held within its massive stone walls. An observatory and telescope are open to the public evenings mid-October through mid-March, and an astronomer is on hand to answer questions.