Pictures Of The Day: Wednesday 23rd March 2016

The View from The Shard, London: Marking the start of Spring, The View from The Shard horticulturalists position and analyse plants at the very top of the building�s spire (in airspace 900ft high) to test their adaptability to altitude ahead of the attraction�s Botanical Gardens opening this summer. The View from The Shard�s open air sky deck - boasting London�s highest view - will be transformed into a urban botanical oasis to celebrate the Year of the English Garden from 9 June. Tickets available from http://www.theviewfromtheshard.com/en/ This picture: Heather Kennedy inspects an orchid at 900ft above the London skyline as she tests the plants for suitability in The View from The Shard's botanical garden

BRUSSELS, BELGIUM - MARCH 22: People gather at Place de la Bourse in support of the victims after the terrorist attacks on March 22, 2016 in Brussels, Belgium. At least 31 people are thought to have been killed after Brussels airport and a Metro station were targeted by explosions. The attacks come just days after a key suspect in the Paris attacks, Salah Abdeslam, was captured in Brussels. (Photo by Aurelien Meunier/Getty Images)

PARIS, FRANCE - MARCH 22: (FRANCE OUT) The Eiffel tower is lit up with the Belgian flag colours of red, yellow and black on March 22, 2016 in Paris, France. The tower has been lit-up in solidarity with the Brussels victims following the bomb attacks which killed at least 31 people on today in Brussels, Belgium. (Photo by Vincent Isore/IP3/Getty Images)

BRUSSELS, BELGIUM - MARCH 22: People hold up a banner as a mark of solidarity at the Place de la Bourse following today's attacks on March 22, 2016 in Brussels, Belgium. At least 31 people are thought to have been killed after Brussels airport and a Metro station were targeted by explosions. The attacks come just days after a key suspect in the Paris attacks, Salah Abdeslam, was captured in Brussels. (Photo by Carl Court/Getty Images)

The rising full moon silhouettes the budding Cherry tree blossoms along the Tidal Basin in Washington, Tuesday evening, March, 22, 2016. The peak period for viewing the blooming trees is expected in a couple of days according to the National Park Service. (AP Photo/J. David Ake)

Democratic presidential candidate Hillary Clinton arrives to speak at a campaign event at Rainier Beach High School in Seattle, Tuesday, March 22, 2016. (AP Photo/Carolyn Kaster)

The moon is seen in its waxing stage as it rises over the Empire State Building, seen from the Hudson River waterfront in Hoboken, N.J., Tuesday, March 22, 2016. (AP Photo/Julio Cortez)

President Barack Obama greets Tampa Bay Rays players before a game with the Cuban national team in Havana, Cuba, Tuesday, March 22, 2016. The crowd roared as U.S. President Barack Obama and Cuban President Raul Castro entered the stadium and walked toward their seats in the VIP section behind home plate. It's the first game featuring an MLB team in Cuba since the Baltimore Orioles played in the country in 1999. (AP Photo/Ramon Espinosa)

Dani Chapin of Meridian, Idaho, and Josh Ferryman, of Boise, bump fists while lying on the floor waiting for the results of the first vote at the Democratic caucus in Boise, Idaho, Tuesday, March 22, 2016. (AP Photo/Otto Kitsinger)

WETHERBY, ENGLAND - MARCH 22: Horses clear a fence during the Racing UK Profits Returned To Racing Handicap Steeple Chase at Wetherby Racecourse on March 22, 2016 in Wetherby, England. (Photo by Alex Livesey/Getty Images)

LONDON, ENGLAND - MARCH 22: Television star Barbara Windsor after she was made a Dame Commander of the order of the British Empire by Queen Elizabeth II for her services to charity and entertainment during an Investiture ceremony at Buckingham Palace on March 22, 2016 in London, England. (Photo by John Stillwell - WPA Pool / Getty Images)

BELFAST, NORTHERN IRELAND - MARCH 22: Family members of Adrian Ismay comfort one another outside Woodvale Methodist church as the funeral of the murdered prison officer takes place on March 22, 2016 in Belfast, Northern Ireland. Mr Ismay was seriously injured after a booby-trap device exploded under his van in east Belfast earlier this month. The 52 year old was thought to be recovering well from his injuries but died following a heart attack due to complications following the bomb attack. The new IRA, a dissident terrorist group have claimed responsibility for the murder. (Photo by Charles McQuillan/Getty Images)

BRUSSELS, BELGIUM - MARCH 22: Soldiers and police officers patrol outside Maelbeek metro station following todays attack on March 22, 2016 in Brussels, Belgium. At least 34 people are thought to have been killed after Brussels airport and a Metro station were targeted by explosions. The attacks come just days after a key suspect in the Paris attacks, Salah Abdeslam, was captured in Brussels. (Photo by Carl Court/Getty Images)

Britain's Prince Harry talks with a Nepalese woman during the Nepal Girl Summit 2016 in Kathmandu, Nepal, on March 23, 2016. Britain's Prince Harry arrived in Nepal for a five-day visit and said he hopes to "shine a spotlight" on the resilience of Nepali people recovering from last year's devastating quake. (Prakash Mathema/Pool Photo via AP)

Pope Francis gestures during his weekly general audience at St.Peter's square on March 23, 2016 in the Vatican. / AFP / FILIPPO MONTEFORTE (Photo credit should read FILIPPO MONTEFORTE/AFP/Getty Images)

Civil protection workers arrive at a cordoned-off area near Maelbeek - Maalbeek subway station in Brussels on March 23, 2016, a day after triple bomb attacks in the Belgian capital killed about 35 people and left more than 200 people wounded. A series of explosions claimed by the Islamic State group ripped through Brussels airport and a metro train on March 22, killing around 35 people in the latest attacks to bring bloody carnage to the heart of Europe. AFP PHOTO / KENZO TRIBOUILLARD / AFP / KENZO TRIBOUILLARD (Photo credit should read KENZO TRIBOUILLARD/AFP/Getty Images)

US actor Leonardo DiCaprio attends a press conference to promote his new movie 'The Revenant' in Tokyo on March 23, 2016.The film will open in Japan on April 22. / AFP / KAZUHIRO NOGI (Photo credit should read KAZUHIRO NOGI/AFP/Getty Images)

Prince Harry arrives into the Himalayan village of Okhari on day four of his visit to Nepal.

An Indian student takes part in an event to celebrate the Holi festival in Kolkata on March 23, 2016.Holi, the Hindu spring festival or 'Festival of Colours' is celebrated with coloured powder and water and marks the end of winter and the beginning of spring. / AFP / Dibyangshu SARKAR (Photo credit should read DIBYANGSHU SARKAR/AFP/Getty Images)

A Pakistani F-16 fighter performs a flypast during the Pakistan Day military parade in Islamabad on March 23, 2016.Pakistan National Day commemorates the passing of the Lahore Resolution, when a separate nation for the Muslims of The British Indian Empire was demanded on March 23, 1940. / AFP / AAMIR QURESHI (Photo credit should read AAMIR QURESHI/AFP/Getty Images)