Some buildings take a while to construct with enormous effort and some last a very long time. We often gasp at the sheer magnificence of some large-scale public works and wonder at the societies that constructed them. Societies take a lot of constructing too.
Firm foundations are needed. They can be toppled if the foundations are weakened or suffer from the deprivations and insults of nature - or man. The Colosseum in Rome is a magnificent structure built for a dissolute society's 'Games' in which people were sacrificed to animals.
Not all great architecture are consistent with beauty or celebration of a worthy society.
This one above was built for the Olympic Games in London recently. Who knows how long it will last. It is called the ArcelorMittal Orbit sculpture
But sacrifices are already being made there.
Recently it became 'licenced' as a venue to conduct 'marriages'. The Lord Mayor of London, Boris Johnson was hauled into its maw the other day.
Boris Johnson has sparked outrage after making a crude joke about same-sex marriage at a gay rights event.
The London Mayor was giving a speech at a £250-a-head gala dinner ahead of the capital's Pride festival this weekend when he made the gaffe, which led to some guests walking out.
In reference to the same-sex marriage bill which is expected to be signed into law later this year, he said: "I'm delighted that as of this autumn any young man will be able to take his chum up the Arcelor... and marry him."
Boris, old chum, there is a long dram of our finest on the bar for you.