Throughout their tour of the cylindrical Interpretation Center of the MuséoParc Alésia, visitors perform a circular stroll in a clockwise direction from the ground floor to the green terrace on the third floor. A helicoidal semi-circular ramp provides access to an annular passageway from the central hall. Relayed by elevators and stairs, it serves the spaces of the permanent exhibition on the first floor. The scenographed spaces are largely open onto the landscape thanks to an exterior wall glazed over its entire height and barely concealed by the larch wood mesh.