put your head over/above the parapet

Examples of parapet

parapet
Level 3 windows, doors, parapets, party walls and freestanding garden walls are added.
The polygonal architecture, niches, and parapets of these structures readily accommodated the pageants built on, around, or near them.
There were few windows on the exterior, their roofs were supplied with long walkways protected by thick parapets, and high look-out towers flanked the entrance and main concourse.
In this image, a parapet separates an outdoor porch or balcony from a background landscape of sky, trees, hills, and water.
Suddenly, a man jumps out of the trench, half-dressed, holding his trousers as he runs along the top of the parapet.
The other approach is to allow the wall to project as a parapet above the roof that now abuts the wall.
Extracts are taken vertically through cavities, exiting behind the rooftop parapet, thereby avoiding penetration of the visible southern elevation.
Evidently, this is a diverse collection, whose contributors rarely rise above the specialist parapet to venture general or comparative ideas.
Thus, the masonry wall created by the causeway foundation and parapet would have been effective at retaining and diverting the southerly flow of stream discharge and rainfall runoff.
Pinnacles were added above the parapet level.
There are at least two shallow depressions, just ventral to the dental parapet, that may represent nutritive foramina, but these are indistinct and their identification cannot be confirmed.
The north masonry facade of the causeway, capped by a parapet, was significantly more formal than the southern edge of the causeway, where the ballast feathered out.
On bridges where cyclists and horse riders are required to ride immediately adjacent to bridge parapets, higher parapets are provided.
From the
Hansard archive