Will and Kate echo iconic Diana photo during visit to Taj Mahal

The Duke and Duchess of Cambridge have wrapped up their week-long trip to India and Bhutan with a visit to the Taj Mahal that carries poignant echoes for Britain's royal family.

Prince William and Kate, who will mark their fifth wedding anniversary tomorrow, were given a tour of the 17^th century mausoleum as part of their visit.

When the late Princess Diana was photographed sitting alone outside the tragic monument to love in 1992, it sparked much media speculation about her ailing relationship with Prince Charles.

Ten months later the couple announced their separation, and the image became a symbol of Diana’s loneliness in the final stages of their relationship.

The Taj Mahal was cleared of tourists minutes before the Duke and Duchess arrived, after flying in earlier to Agra, its streets decked out in fairy lights and flowers to welcome the high-profile visitors.

As the temperature soared to 41 degrees, workers sprinkled ice water on the famous "Diana bench" in front of the monument, before the pair posed for a photo.

"It's a beautiful place, stunning designs in there," Prince William told reporters after the couple spent about half an hour inside the mausoleum, famous for its pure white marble.

The Duchess said it had been "incredible learning about the romance of the building and its really beautiful architecture".

Their visit to India's most recognisable landmark follows a whirlwind week that saw the young royals feed baby rhinos in northeastern Assam, trek to a mountain monastery in Bhutan, hobnob with Bollywood stars in Mumbai and meet Prime Minister Narendra Modi for lunch at a former palace in New Delhi.

It marks the final stop of a hectic itinerary for the royal couple, on their first official trip to the country that the British ruled for close to 200 years.

The couple will now head home in time for the Queen's 90th birthday on April 21.