London

The Ukrainian Cossack Stunt team perform during day seven of the Olympia London International Horse Show at the Olympia Exhibition Centre, London

Steve Parsons/PA Wire.

The Ukrainian Cossack Stunt team perform during day seven of the Olympia London International Horse Show at the Olympia Exhibition Centre, London on Monday

Fashion designer Gareth Pugh unveils the Victoria and Albert (V&A) Museum's Christmas tree, tilted Ceremony, London. PRESS ASSOCIATION Photo. Picture date: Tuesday December 9, 2014. Photo credit should read: Anthony Devlin/PA Wire

Anthony Devlin/PA Wire

Fashion designer Gareth Pugh unveils the Victoria and Albert (V&A) Museum’s Christmas tree, titled Ceremony.

Crossrail development of Farringdon platform in London, as more than 23 miles (nearly 90%) of train tunnels are now complete, with tunnelling due to finish in spring next year. PRESS ASSOCIATION Photo. Issue date: Friday November 28, 2014. Six of Crossrail   s eight tunnelling machines have now completed their drives.

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A view of the Farringdon platform part of the Crossrail development in London, as more than 23 miles (nearly 90%) of train tunnels are now complete, with tunnelling due to finish in spring next year

Lego figures are displayed on the opening day of BRICK 2014 at the Excel Centre on November 27, 2014 in London, England. The four day event showcases creations by some of the world's best Lego builders and runs until November 30th.

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Lego figures are displayed on the opening day of BRICK 2014 at the Excel Centre on Thursday in London, England. The four day event showcases creations by some of the world’s best Lego builders and runs until Sunday

Mayor of London Boris Johnson joins  some of world's best wheelchair tennis players outside City Hall in London, as they demonstrate their skills ahead of the forthcoming NEC Wheelchair Tennis Masters in Birmingham. PRESS ASSOCIATION Photo. Picture date: Monday November 24, 2014.

Steve Parsons/PA

Mayor of London Boris Johnson joins some of world’s best wheelchair tennis players outside City Hall in London, as they demonstrate their skills ahead of the forthcoming NEC Wheelchair Tennis Masters in Birmingham

A man carries placards that read "Free education. Tax the rich" in preparation for a student march against university fees in London on November 19, 2014. The demonstration organised by the Student Assembly Against Austerity, alongside the Young Greens and National Campaign Against Fees and Cuts demands free education and an end to tuition fees, education cuts and student debt.

Justin Tallis/AFP

A man carries placards that read ‘Free education. Tax the rich’ in preparation for a student march against university fees in London on Wednesday

An employee of the Christie's auction house poses for photographs beside the Allen Jones sculpture "Enchanteresse", painted bronze and leather on a steel base at their premises in London, Monday, Nov. 17, 2014.  The piece is estimated to fetch 60,000 to 80,000 pounds ($93,870 to $125,160, / 75,122 to 100,163 euro), when it features in a Modern British and Irish Art evening sale in London on November 19.

Matt Dunham/AP

An employee of the Christie’s auction house looks at the Allen Jones sculpture “Enchanteresse”, painted bronze and leather on a steel base at their premises in London on Monday

John Mould, who has worked at Hampton Court Palace for over fifty years, removes the first of 888,246 hand-made poppies, representing each of the commonwealth servicemen and women killed in the first world war at Tower of London on November 12, 2014 in London, England. Around five million people are thought to have visited the artwork entitled 'Blood-Swept Lands and Seas of Red' by artist Paul Cummins and Tom Piper and removal is estimated to take 8,000 volunteers around two weeks.

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John Mould, who has worked at Hampton Court Palace for more than 50 years, removes the first of 888,246 hand-made poppies, representing each of the commonwealth servicemen and women killed in the first world war, at the Tower of London on Wednesday in London, England

A Yeomen Warder awaits the placing of the last ceramic poppy in the moat of Tower of London to mark Armistice Day, on November 11, 2014 in London, England. The installation 'Blood Swept Lands and Seas of Red' by artists Paul Cummins and Tom Piper consists of 888,246 ceramic poppies - representing each of the commonwealth servicemen and women killed in the first world war.

Peter Macdiarmid/Getty Images

A Yeoman Warder awaits the placing of the last ceramic poppy in the moat of the Tower of London to mark Armistice Day in London

Johanna Puisto, sculpture conservator at The V&A, unveils a cast of Michaelangelo's David at Victoria & Albert Museum on November 10, 2014 in London, England.

Stuart C. Wilson/Getty Images

Johanna Puisto, a sculpture conservator at the Victoria & Albert Museum, unveils a cast of Michelangelo’s David on Monday in London, England