The Unst Bus Shelter — at the road junction outside Baltasound — is the kind of thing that sounds underwhelming until you actually see it. The interior is furnished as a small sitting room: armchairs, a side table, a kettle that doesn't work, framed pictures on the walls, and a theme that changes every year and is chosen and installed by an unnamed local. Past themes have included the Olympics, Britain in Bloom, and the moon landing.
It is the kind of low-key, slightly absurd attraction that captures the spirit of Unst better than anything else. Stop here, sit down, sign the visitors' book, then drive on. The shelter is always open and there is no admission fee, only the slight obligation to leave it as you found it.