28.11.2026

Slopfest #46 · 1972 · Vienna

An Island From Scratch

Vienna began building a 21-kilometer island out of dug-up riverbed. Generated content, but for land.

Heroic-style public-works poster: beaming guests with shovels on a gravel heap in the Danube, 'SLOPFEST #46: BUILD YOUR OWN ISLAND!'
Heroic-style public-works poster: beaming guests with shovels on a gravel heap in the Danube, 'SLOPFEST #46: BUILD YOUR OWN ISLAND!'

Museum status: Awaiting restoration by an AI that keeps adding fingers.

Venue
Donauinsel, mostly mud at the time
Attendance
1,920
Guest of honour
Christo (offered to wrap the island and was told it was not finished)
Fun fact
1 island, 0.02% complete, 1,920 shovels

What happened

The festival took place on the first few meters of the new island, which was a pile of wet gravel and a sign. Guests were handed shovels and told they were co-creating the venue. Christo offered to wrap it and was told it was not finished yet. Several hundred cubic meters were moved. Engineers later moved them back.

Elsewhere in 1972

Construction begins on the Donauinsel, a 21-km artificial island in the Danube built from the spoil of a new flood channel.

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