I highly recommend taking the guided tour. You get a unique look behind the curtains of this great concert center. Architecture is great and everything is built with the best materials to ensure great acoustics for every performance.

Harpa Reykjavik Concert Hall and Conference Centre, Austurbakki 2, Reykjavik 101, Iceland
https://en.harpa.is/
+354 528 5050

Visited August 2014. You can find my review about Harpa Reykjavik Concert Hall and Conference Centre also on TripAdvisor.