Hallgrimskirkja may, at first sight, seem like something coming straight out of Star Trek, but it is actually a Lutheran parish church - the largest one in Iceland. It is named after Hallgrímur Pétursson - an Icelandic poet and author of the Passion Hymns.
Entrance to the church services and concerts is free while taking the lift to climb the towers and see Reykjavik from 70 metres os height requires buying a ticket.