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Seen

Mannesmann-Hochhaus

Hochblau

The Mannesmann tower, designed by Egon Eiermann in the 1950's.

Bleufond

The Mannesmann tower, designed by Egon Eiermann in the 1950's.

Diepblauw

The Mannesmann tower, designed by Egon Eiermann in the 1950's.

Deep Blue

The Mannesmann tower, designed by Egon Eiermann in the 1950's.

Kobaltstadt

Panorama of Düsseldorf's old town around the Rhine-side, colorfully illuminated in the "blue hour":

Ville bleue

Panorama of Düsseldorf's old town around the Rhine-side, colorfully illuminated in the "blue hour":

Bloude stad

Panorama of Düsseldorf's old town around the Rhine-side, colorfully illuminated in the "blue hour":

Old town blues

Panorama of Düsseldorf's old town around the Rhine-side, colorfully illuminated in the "blue hour":