Crafted over nearly a decade, the gilded Diamond Jubilee State Coach is only the second new horse-drawn state carriage to be built in more than 100 years.
It contains wood from king Henry VIII's flagship the Mary Rose, which sank in 1545, and Isaac Newton's apple tree, which inspired him to form his theory of gravity.
The coach is covered in more than 400 books of gold leaf and despite the overcast London skies today, brightly caught the eye as it was drawn to the Palace of Westminster by six horses.
The carriage is almost five and a half metres (yards) long, more than three metres high and weighs more than three tonnes.
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The coach was made by Australian craftsman Jim Frecklington in his workshop in the Sydney suburb of Manly.
"This coach is different to any other coach made in history, as this coach encapsulates the history of Britain going back almost one thousand years," he told BBC television.
"I've been able to find timber from many great buildings, great ships, great aircraft and also I've been able to incorporate items from many of the great people that have made Britain what it is today."
The inside, lined in yellow silk, incorporates items donated by more than 100 of Britain's historic sites and organisations.
Many are squares of wood that have been highly polished and decorate the interior walls and door panels.
The seat handrails are from the decommissioned Royal Yacht Britannia.
The window frames and inside panels include material from Caernarfon Castle, Canterbury Cathedral, Durham Cathedral, 10 Downing Street, and the Antarctic bases of polar explorers Robert Scott and Ernest Shackleton.