A furnishing structure with light sources includes two substantially equal base sections facing each other and held together by a connection section and by a pair of end heads to jointly define a prismatic body and jointly delimit at least one slot for light rays to pass, the light rays being emitted by at least one multiple light source positioned removably inside the space delimited by the base sections facing each other and being reflected by the connection section. Each base section includes a first wing, which is coplanar to a first wall of the prismatic body, a second wing, which is adjacent to the first wing, and a third wing, which is adjacent to the second wing and extends parallel from the third wing of the other base section to delimit the slot when the two base sections are facing each other.