Stonehenge had an aura but it was also just stone. Then in the sixties, it became a great hedonistic, hippie, druid, rock-n-roll party site. There are amazing pictures of people up on the stones going wild and that's the image I recreated for my model of the project: full access to everyone. I even invented a Stonehenge soccer team that uses spaces between the stones as goals.

I've made a poster at home. You know the iconic image of Che Guevara, the black and red graphic of his face? I think it's the perfect graphic, the best graphic ever made. I cut a Concorde out and put it over his head so it's Che looking up and the Concorde going by. Both are dead, maybe obsolete.

I'm completely uninterested in the origins of Stonehenge. I don't care about the real story behind it or whether it should be saved or not. What I'm interested in is this: in the Victorian era, you could go there as an early cultural tourist and you were given a chisel to chip off a bit of the stones and take it with you. That's what you did in Victorian times.

The plane as an object has been a huge effort to make. It is a sculpture, a technological invention, a piece of aviation culture. But really, it only exists to be inserted into a variety of landscapes, to be a catalyst, to offset them.

Dutch beaches were known to me as man-made territories, as part of various land reclamation projects. But I was also interested in the media reality of the Moon landing. I wanted to use that event as a measure of time, to see what had happened in those thirty years - which happens to be my lifetime as well. I was born in 1967 and I remember seeing the Moon landing on TV when I was two. All those things were in play. Then it became a big production. It took five months to gather up the goodwill and make it happen.

In a way I am saying the nation-state doesn't exist, borders don't exist, you can try going anywhere. It is a kind of pre-Internet consensus I always had in me.

The space program caused so much future-thinking in culture. People who couldn't go to the Moon were building space-fantasy chairs and corsets and hairdos and anything that they could put their hands on.