Starship Pegasus comes to an end The structure, a roadside attraction for years, in its heyday. Its time has come to end and it was recently demolished. A view of the whole structure during demolition. A trackhoe was used for the demolishing. (Mike South) Parts of the Monolithic Dome are seen during demolition: polyurethane foam, steel rebar, and shotcrete. (Mike South) The trackhoe worked on the structure, creating big holes in the structure until it eventually came down. (Mike South) A close-up of a hole in the dome, where the steel rebar can be seen. (Mike South) A side view of the structure during demolition. (Mike South) Part way through the demolition of the dome. (Mike South) The dome after it was completely torn down. (Mike South)