#1 Rosenborg Castle
Come for the crown jewels and royal regalia on display inside - stay for the gardens and relaxed atmosphere next-door in King's Garden.
#2 Amalienborg Palace
Current residence of the Danish monarch - and one of the finest pieces of Rococo architecture in Denmark. This place is especially compelling, since it's essentially a 2-in-1 attraction along with the equally impressive Marble Church.
#3 Christiansborg Palace
The Danish royal family used to live here - now, it's the seat of the Danish Parliament, and its tower provides one of the best (free) views of Copenhagen.
#4 The Hermitage
A royal hunting lodge to the north of Copenhagen, and neighbour to impressive and UNESCO-worthy landscapes. Deer and royalty - what's not to like? (Photo by Kim Wyon)
#5 Kronborg Castle
Easily the most famous Danish castle of them all for obvious, Shakespeare-related reasons. No list of Danish castles would be complete without Kronborg.
#6 Frederiksborg Castle
The picture pretty much says it all. (Photo by Ellen Thoby)
#7 Fredensborg Palace
The spring and autumn residence of the Danish monarch, the palace is especially accessible to visitors during the summer months, as it is vacant at this time. The gardens here are worth it alone (and open all year round) although the palace itself is no slouch either. (Photo by Roberto Fortuna)