On June 21, 1675, the foundation stone for London's St. Paul’s Cathedral was laid. An excerpt from the article:
"One of the greatest buildings in Britain – if not in the world – is St Paul's Cathedral in London. It's almost certainly the greatest ever created by a single individual, whose vision and passion overcame every kind of obstacle to its completion.
On this day in 1675, the first stone of Sir Christopher Wren's masterpiece was laid by master mason Thomas Strong. There was no great fanfare, but it marked the beginning of a labour of many years – it wasn't finished unti 1710."