They are triangular structures
the pillars
If your talking about a building then they usually use curved triangler shapes.
The triangle is the strongest geometric shape, but it's two-dimensional. Applying the idea (via cross bracing or the like) to construction is something that has been done for centuries. This is a simplified answer as the question is very general, but the application of a triangle or an angular tie to strengthen vertical elements and add rigidity to a structure is something that can be seen frequently.djsfjegythgeydgtryeg
the strongest mineral is the diamond, actually the strongest mineral is the quartz and the strongest rock is diamond
The second strongest building material is obsidian even though it can't get blown up.
there is no strongest rubber
I think the strongest 3D shape is a cylinder.
I don't know about the second strongest but a triangle is the strongest. Even if each corner had a hinge, the triangle could not be bent whereas all other shapes do not have this property
Sphere..
nio
The use of steel to make pillars offers the strongest support for a building.
The second strongest building material is obsidian even though it can't get blown up.
not very, the triangle is one of the strongest supporting shapes.
triangle
Pyramid
The elevator shaft
osmium
The strongest historical building in the world is the grand pyramid in Egypt.