Blå Porten

Sing ABBA karaoke in a booth made to feel like the Polar Studio, then get up on the big stage and perform as the fifth member with Agnetha, Björn, Benny and Frida.

In the same building as ABBA The Museum, with music and theater details in the rooms, loft rooms under skylights, and a two-bedroom suite with its own veranda.

Baltic shipwrecks brought to life with immersive films, virtual reality and holograms, free for under-18s, on the waterfront between the Vasa Museum and Gröna Lund.

Sweden's oldest amusement park, open since 1883, with teacups, flying elephants and mini bumper cars for small kids and roller coasters for big ones.

An interactive museum of Swedish drinking culture, told through history, art and sensory exhibitions, with the Absolut Art Collection on show.

Archaeological finds, rebuilt Viking settings and guides in Viking dress, plus Ragnfrid's Saga, a ride through 10th-century Europe on Harald's journey.