Theremin guitar:

Great album covers pt. 17:

Harm van der Dorpel:

Charles Paul Landon:

Tippi of Africa: (Thnx Per!)

Åsa Jungnelius:

Wassily Kandinsky:

Olafur Eliasson:

?:

The Voynich Manuscript:

William Blake:

Great album covers pt. 16:

Michael Leon/Rasa Libre:

Ilmari Tapiovaara:

Neil Krug:

Isamo Noguchi:

Renato Bertelli:

Buckminster Fuller:

Hort: