Cottbus University Library, near Berlin, is one of the latest work of Swiss architecture studio Herzog & de Meuron.

The building has a very unusual amoeba shape and its glazed facade is covered with thousands of overlapping letters, prompting associations with mysterious palimpsests. The glass changes colour according to your point of view and the weather: under the winter sun it takes an ivory look, turns greenish when the sky is cloudy, etc. But always in striking contrast with the colourful interior.

74 photos and another gallery.

Other works by Jacques Herzog and Pierre de Meuron: The Tate Modern (London), the Olympic Stadium in Beijing, etc.

Via Dezain.