The labyrinth: Architecture, Design and
other Arts
Círculo de Bellas Artes, Madrid 2003
Museu de les Arts Decoratives, Barcelona 2003
Palacio Nacional de Cultura NDK, Sofia 2004
International Design Center, Budapest 2004
This exhibition—which was curated by Juli Capella and which embraced almost the whole of OTB’s artistic activity—showed a number of his drawings, watercolours and oils.