They were covered by the concrete domes that could be moved aside on rails in 30 minutes.
The plan accepted involved a 710 ton reinforced concrete dome, which had to be supported by 16 thin supports.
It's going to be dam' cold, but it would do you good after stewing inside that concrete dome all the morning.
Dominating an area the size of a football field are three concrete domes rising from the floor, each 47 feet wide at the base.
The construction of its reinforced concrete dome was a considerable technical achievement.
The Pantheon still holds the record for the world's largest unreinforced concrete dome.
A Binishell is large reinforced concrete dome shaped and lifted by air pressure.
The gray light turned out to come from a strange round chamber, its roof a high concrete dome.
These parks were covered with a fixed roof, usually a hard concrete dome.
First, his firm's construction methods would be used to create a concrete dome 40 feet across and weighing 100 tons.