Yes lol
A steel door, diamond bars
Anderson shelters were air raid shelters made from galvanized corrugated steel panels. The metal was shaped into a shelter capable of holding six people and then partially buried in the ground.
Because the man who invented the Anderson shelter his surname was Anderson its just the same as the Morrison shelter too!!!
thay used to have earth and leaves
incas used sticks and bricks to make their own shelter.
They lived in longhouses and used bark from all kinds of trees to build it
Americans used steel to build bridges and skscapers.
The material used to build the bridge was wood and steel
Steel
Glass and steel
Its a stronger type of steel and 60 ksi steel was used to build Taipei 101.
Concrete, glass, wood and steel were used to build the Calgary tower.