Prince Charles and Camilla go Underground: in photos

By MSN UK News Chris Jackson/PA Wire
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The Duchess of Cornwall and Prince Charles on the Underground

The Duchess of Cornwall and The Prince of Wales travel on a Metropolitan underground train from Farringdon to King's Cross as they mark 150 years of the London Underground. They also took a tour of King's Cross and St Pancras International stations and a recently renovated hotel as the following photos show.

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The royal service

The royal couple settle in for the journey.

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A smiling Prince Charles

The Prince of Wales laughs as he prepares to travel on an underground train to help celebrate the transport network's special birthday.

Chris Jackson/PA Wire
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Passing through a ticket barrier

Pictured are Prince Charles and his wife as they walk through a ticket barrier.

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Royal couple stop at 'Harry Potter platform'

A photo showing the royal couple trying to board the Harry Potter inspired Hogwarts Express, at the fictional platform nine-and-three-quarters, during a tour around the refurbished King's Cross train station in London.

Oli Scarff/PA Wire
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Sharing a joke

The Prince of Wales shares a joke with Kevin Kelly (centre), general manager of St Pancras Renaissance London Hotel, as they admire the architecture of St Pancras International station.

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The royal couple try a Victorian drink

The Prince of Wales and the Duchess of Cornwall drink a punch made from a Victorian recipe during a visit to the recently regenerated St Pancras Renaissance London Hotel adjacent to St Pancras International station.

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The royal view of a grand staircase

Viewing the grand staircase, the Duchess of Cornwall and her husband are pictured with hotel historian Royden Stock at the St Pancras Renaissance London Hotel.