7. Senate House, Bloomsbury, London

Source: http://en.wikipedia.org/wiki/Senate_House_(University_of_London)

London's elegant Senate House was the city's second ever skyscraper, with construction beginning on its 19 floors in 1932. Back in the day, this was the second tallest building in London, reaching 210 ft and dwarfed only by St Paul's Cathedral.

8. Brighton Pavilion, West Sussex

Source: http://upload.wikimedia.org/wikipedia/commons/6/62/Brighton_-_Royal_Pavilion_Panorama.jpg

The flamboyant George IV started construction on this decadent, Indo-Saracenic style 'seaside retreat' in 1787 before he came to the throne.