Designed by Benjamin Baker and John Fowler, the Forth Bridge was the greatest symbol of the Victorian railway age.
A perfect circle of palatial terraced houses in the centre of Regency Bath becomes one of the most fashionable addresses in the country.
The largest inhabited castle in the world also served as a lunatic asylum.
The honey-coloured walls of Harwick Hall in Derbyshire hold the secret to one of the country's golden ages.
Dan Cruickshank investigates the engineering feat of Durham Cathedral, the thinking behind which was a century ahead of any other British building; the cathedral's secrets and the lives of the monks who worshipped there.
A visit to Harlech Castle in North Wales.
Blenheim Palace in Oxfordshire is a monument to militarism and human pride.
The Palace of Westminster was born out of extreme crisis and the highest idealism of the 19th century.
The Tower Bridge appears to be a stone structure but is actually made of steel.