Watch Secrets of Britain Season 1 in Australia

The Tower of London is England’s most formidable royal fortress, standing guard on the banks of the great River Thames. It is home to a thousand years of bloody history and is one of Britain's most iconic landmarks. At almost every chapter in London's history, ‘the Tower’ has had a starring role. Built by William the Conquer as part of the Norman Conquest of England in the 11th century, it was designed to dominate London's skyline. The ancient fortifications are set in grounds the same size as those of the White House, but this is far more than just a castle, protecting London from her enemies.

A look inside the dark underground history of London, exploring ruins of the past, war bunkers and plague era pits.

Westminster Abbey is steeped in Anglo-Saxon myth and regal legend, having housed a number of dead luminaries while also hosting many royal weddings.

A look at the real organisation and functions of MI6, which was made famous by the James Bond film series for its alleged secret technology and dangerous operations.

Discover the macabre details of Scotland Yard's past and meet a host of present-day sleuths to unearth the secrets of the world's most famous police station.

Uncover the secret history of this lavish department store, which revolutionised the way that Brits shopped, and also the amazing story of Mr Selfridge himself.