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Mandatory Credit: Photo by Amer Ghazzal/REX/Shutterstock (7727916j) Crowds queue outside the Natural History museum to view Dippy Diplodocus dinosau...

Mandatory Credit: Photo by Amer Ghazzal/REX/Shutterstock (7727916k) Crowds at the Natural History museum get the last chance to view Dippy Diplodocus...

Mandatory Credit: Photo by Amer Ghazzal/REX/Shutterstock (7727916m) Crowds at the Natural History museum get the last chance to view Dippy Diplodocus...

Mandatory Credit: Photo by Amer Ghazzal/REX/Shutterstock (7727916n) Crowds at the Natural History museum get the last chance to view Dippy Diplodocus...

The Inchgreen Cranes, at a former shipbuilding yard on the River Clyde in Greenock, being demolished by a controlled explosion.

Composite image of the Inchgreen Cranes, at a former shipbuilding yard on the River Clyde in Greenock, being demolished by a controlled explosion.

The Inchgreen Cranes, at a former shipbuilding yard on the River Clyde in Greenock, being demolished by a controlled explosion.

The Inchgreen Cranes, at a former shipbuilding yard on the River Clyde in Greenock, being demolished by a controlled explosion.

Container housing for students on the student residence Uithof campus of Utrecht University.

Uithof complex-student housing on the students of the Utrecht University.

In this photo taken Dec. 21, 2016, the Trump International Hotel in Washington. A Pennsylvania man has been arrested at the Trump International Hotel...

(FILES) This file photo taken on December 16, 2016 shows Co-founder and Chief Executive Officer (CEO) of US tranportation company Uber, Travis Kalanic...

Cyprus President Nicos Anastasiades (L) is welcomed by European Commission President Jean-Claude Juncker at the European Commission in Brussels, Decem...

European Commission President Jean-Claude Juncker, left, shakes hands with Danish Prime Minister Lars Lokke Rasmussen during a round table meeting at...

BRUSSELS, BELGIUM - DECEMBER 15: President of the European Commission, Jean-Claude Juncker (L) and Danish Prime Minister Lars Lokke Rasmussen attend t...

European Commission President Jean-Claude Juncker (R) and Member of the European Parliament and former leader of the UK Independence Party (UKIP) Nige...

A Uighur passes by fabric on display at a Sunday bazaar in Kashgar, China, Dec. 11, 2016. In the streets of Kashgar, regular police patrols, mobile po...

Uighur customers at a restaurant serving boiled lamb at Kashgar Sunday animals market in Kashgar, China, Dec. 11, 2016. In the streets of Kashgar, reg...

A butcher cuts lamb meat at Kashgar Sunday animals market in Kashgar, China, Dec. 11, 2016. In the streets of Kashgar, regular police patrols, mobile...

A Uighur man burns a sheep head over a fire in Kashgar, China, Dec. 11, 2016. In the streets of Kashgar, regular police patrols, mobile police station...

A man sells fabric at a Sunday bazaar in Kashgar, China, Dec. 11, 2016. In the streets of Kashgar, regular police patrols, mobile police stations rese...

A customer tries a horse for sale at Kashgar Sunday animals market in Kashgar, China, Dec. 11, 2016. In the streets of Kashgar, regular police patrols...

Yaks and cows lined up at Kashgar Sunday animals market in Kashgar, China, Dec. 11, 2016. In the streets of Kashgar, regular police patrols, mobile po...

Street barbers at work near Kashgar Sunday animals market in Kashgar, China, Dec. 11, 2016. In the streets of Kashgar, regular police patrols, mobile...

Women in an alleyway at a Sunday bazaar in Kashgar, China, Dec. 11, 2016. In the streets of Kashgar, regular police patrols, mobile police stations re...

A woman thinks over the purchase of velvet fabric at a Sunday bazaar in Kashgar, China, Dec. 11, 2016. In the streets of Kashgar, regular police patro...

Men pass by surveillance cameras in Kashgar, China, Dec. 11, 2016. In the streets of Kashgar, regular police patrols, mobile police stations resemblin...

A renovated Kashgar at night in China, Dec. 10, 2016. Officials said they are trying to prevent violent, anti-state episodes in Uighur areas, which th...

Police check the identification of people passing in Kashgar, China, Dec. 10, 2016. Officials said they are trying to prevent violent, anti-state epis...

Mandatory Credit: Photo by Ray Tang/REX/Shutterstock (7550492b) General view of the gallery featuring stories, artefacts and design to explore how ma...

Mandatory Credit: Photo by REX/Shutterstock (7552404p) General View Zaha Hadid 'Mathematics: The Winton Gallery' opens at the Science Museum, London...

Mandatory Credit: Photo by REX/Shutterstock (7552404t) General View Zaha Hadid 'Mathematics: The Winton Gallery' opens at the Science Museum, London...

France, Paris, Parc de La Villette, Cite des Sciences and Industry of the architect Adrien Fainsilber, the Geode

France, Paris, Parc de La Villette, Cite des Sciences and Industry of the architect Adrien Fainsilber, the Geode

France, Paris, Parc de La Villette, Cite des Sciences and Industry of the architect Adrien Fainsilber, the Geode

Lake Vanda, an ice-covered lake fed by the Onyx River, which only flows in summer, in the McMurdo Dry Valleys in Antarctica, Dec. 2, 2016. The Dry Val...

Windblown grit carves exposed rocks on the Upper Wright Valley rim in the McMurdo Dry Valleys in Antarctica, Dec. 2, 2016. The Dry Valleys are the lar...

The walls of the Upper Wright Valley, banded with light and dark rock that appeared during the breakup of Gondwana, which yielded the continents we kn...

Don Juan Pond, though to be the saltiest body of water in the world, in the McMurdo Dry Valleys in Antarctica, Dec. 2, 2016. The Dry Valleys are the l...

Friis Hills, the remnants of an ancient landscape, in the McMurdo Dry Valleys in Antarctica, Dec. 1, 2016. The Dry Valleys are the largest ice-free re...

The McMurdo Dry Valleys in Antarctica, Dec. 1, 2016. The Dry Valleys are the largest ice-free region in Antarctica and one of the driest places on the...

Mandatory Credit: Photo by Guy Bell/REX/Shutterstock (7524567s) Aluminum - Rashida Bumbray and Simone Leigh 'Aluminum' Dance Performance, Tate Moder...

18th EU-Ukraine summit in Brussels, Belgium on Nov. 24, 2016

Pope Francis (C) greets cardinal George Pell (L) of Australia after the celebration of a mass marking the end of the Jubilee of Mercy, on November 20,...

In this Nov. 18, 2016, photo, self-styled exorcist Tun Naing, center, arrives at a district court t in Thanlyin township, south of Yangon, Myanmar. Th...

In this Nov. 18, 2016, photo, self-styled exorcist Tun Naing, center, arrives at a district court in Thanlyin township, south of Yangon, Myanmar. The...

FILE - US-President Obama arrives in a so-called 'Beast' vehicle for his departure at Tegel airport in Berlin, Germany, 18 November 2016. Obama reside...

FILE - US-President Obama arrives in a so-called 'Beast' vehicle for his departure at Tegel airport in Berlin, Germany, 18 November 2016. Obama reside...

US President Barack Obama's limousine "The Beast" drives past the Reichstag building housing the German Bundestag (lower house of parliament) as he ma...

President of the European Commission Jean-Claude Juncker (L) welcomes French Foreign minister Jean-Marc Ayrault before their meeting at the EU headqua...