A door comprising: a door leaf movable between a closed position and an open position and having a plurality of door leaf elements (110, 120, 130, 140) tiltable in relation to one another in relation to tilt axes extending parallel to one another and preferably located in the region of the inside of the door leaf which, in the closed position, faces towards the interior of the space to be closed by the door, a pedestrian door integrated into the door leaf and having a pedestrian door leaf which is pivotable around a pivot axis extending approximately perpendicularly to the tilt axes in relation to door leaf elements which are adjacent in the direction of the tilt axes, which pedestrian door, in its closed position, is accommodated in a recess of the door leaf and, in the closed position, is located preferably approximately in the plane of the door leaf, guide rails for guiding the movement of the door leaf between the closed position and the open position and comprising a vertical section extending approximately in a straight line and approximately parallel to the lateral edge of the door leaf in the closed position, a horizontal section extending approximately in a straight line and approximately parallel to the lateral door leaf edge in the open position, and an arcuate section connecting the two sections arranged in a straight line to one another, and a bolt arrangement which in a locking position counteracts a pivot movement of the pedestrian door leaf around the pivot axis, wherein the pedestrian door leaf elements (210, 220, 230, 240) and the door leaf elements (110, 120, 130, 140) have a shell made of sheet metal forming the outer side and a shell made of sheet metal forming the inside, an insulating material being placed between the shells, characterised in that the bolt arrangement has at least two bolt devices (116, 126, 216, 226, 256, 236'), each of which, in the locking position, counteracts a pivot movement of the respective pedestrian door leaf element in relation to an adjacent door leaf element, wherein the door has a lock accommodated in a pedestrian door leaf element or door leaf element and accessible both from the inside and from the outside, which lock comprises a bolt element accommodated, in the locking position, in a recess in the edge of the adjacent element facing towards the element accommodating the lock, wherein an additional bolt device is assigned to the pedestrian door leaf element accommodating the lock. a door leaf movable between a closed position and an open position and having a plurality of door leaf elements (110, 120, 130, 140) tiltable in relation to one another in relation to tilt axes extending parallel to one another and preferably located in the region of the inside of the door leaf which, in the closed position, faces towards the interior of the space to be closed by the door, a pedestrian door integrated into the door leaf and having a pedestrian door leaf which is pivotable around a pivot axis extending approximately perpendicularly to the tilt axes in relation to door leaf elements which are adjacent in the direction of the tilt axes, which pedestrian door, in its closed position, is accommodated in a recess of the door leaf and, in the closed position, is located preferably approximately in the plane of the door leaf, guide rails for guiding the movement of the door leaf between the closed position and the open position and comprising a vertical section extending approximately in a straight line and approximately parallel to the lateral edge of the door leaf in the closed position, a horizontal section extending approximately in a straight line and approximately parallel to the lateral door leaf edge in the open position, and an arcuate section connecting the two sections arranged in a straight line to one another, and a bolt arrangement which in a locking position counteracts a pivot movement of the pedestrian door leaf around the pivot axis, wherein the pedestrian door leaf elements (210, 220, 230, 240) and the door leaf elements (110, 120, 130, 140) have a shell made of sheet metal forming the outer side and a shell made of sheet metal forming the inside, an insulating material being placed between the shells, characterised in that the bolt arrangement has at least two bolt devices (116, 126, 216, 226, 256, 236'), each of which, in the locking position, counteracts a pivot movement of the respective pedestrian door leaf element in relation to an adjacent door leaf element, wherein the door has a lock accommodated in a pedestrian door leaf element or door leaf element and accessible both from the inside and from the outside, which lock comprises a bolt element accommodated, in the locking position, in a recess in the edge of the adjacent element facing towards the element accommodating the lock, wherein an additional bolt device is assigned to the pedestrian door leaf element accommodating the lock.