Bjorn, aged 5, smiles as he poses with a Owl butterfly during an event to launch the Sensational Butterflies exhibition at the Natural History Museum in London, Britain March 23, 2016. REUTERS/Dylan Martinez TPX IMAGES OF THE DAY
TOPSHOT - US President Barack Obama and First Lady Michelle Obama read Maurice Sendak's 'Where the Wild Things Are' to children at the annual Easter Egg Roll at the White House in Washington, DC, on March 28, 2016.
Some 35,000 guests have been invited to participate in the 138th annual Easter Egg roll. The theme of the day's event is Let's Celebrate! / AFP / Nicholas Kamm (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)
VANCOUVER, BC - MARCH 27: Matt Bartkowski #44 of the Vancouver Canucks gets his helmet adjusted during their NHL game against the Chicago Blackhawks at Rogers Arena March 27, 2016 in Vancouver, British Columbia, Canada. (Photo by Jeff Vinnick/NHLI via Getty Images)
PALMYRA, SYRIA. MARCH 26, 2016. An injured soldier of the Syrian government army at the Fahkr ad-Din al-Maani castle in Palmyra, a UNESCO World Heritage Site. The Syrian Government's army is fighting with ISIS militants for control of the heritage site. Valery Sharifulin/TASS (Photo by Valery Sharifulin\TASS via Getty Images)
Pakistani women mourn the death of relatives after a bomb blast in Lahore on March 27, 2016.
At least 25 people were killed and dozens injured when an explosion ripped through the parking lot of a crowded park where many minority Christians had gone to celebrate Easter Sunday in the Pakistani city Lahore, officials said. / AFP / ARIF ALI (Photo credit should read ARIF ALI/AFP/Getty Images)
BRUSSELS, BELGIUM - MARCH 27: Right-wing self-described hooligans trample over flowers and candles left over the previous few days at Place de la Bourse for victims of simultaneous suicide bombings at Brussels Zaventem airport and Maelbeek/Maalbeek train station, on March 27, 2016, in Brussels, Belgium. Days after the attacks killed 34 people and injured over 300, security levels have been lowered, but on the Easter Sunday following the attacks, the city still remains on edge. A 'March for Peace' scheduled for the holiday was canceled due to safety concerns. Meanwhile police used water cannons on a group of the few hundred right-wing demonstrators who descended upon the peaceful ongoing vigil on the Place de la Bourse. (Photo by Adam Berry/Getty Images)
DUBLIN, IRELAND - MARCH 27: General view of the flyover at the Easter Sunday Commemoration Ceremony and Parade from OConnell Street on March 27, 2016 in Dublin, Ireland. Today marks the 100th anniversary of the Easter Rising in the Republic of Ireland when in 1916 a rebellion was attempted to oust British rule of the country. (Photo by Maxwells/Irish Government - Pool/Getty Images)
Firefighters and rescue workers search for victims at the site of an under-construction flyover after it collapsed in Kolkata, India, March 31, 2016. REUTERS/Rupak De Chowdhuri
NEW YORK - MARCH 30: GOP Presidential Candidate John Kasich eats a piece of pizza at Gino's Pizzeria and Restaurant on March 30, 2016 in the Queens borough of New York City. Kasich is one of three remaining GOP Presidential Candidates fighting for New York's 95 Republican delegates in the upcoming primary on April 19, 2016. (Photo by Bryan Thomas/Getty Images)
An attendee stands for a photograph while wearing a shirt in support of Senator Bernie Sanders, an independent from Vermont and 2016 Democratic presidential candidate, not pictured, in Kenosha, Wisconsin, U.S., on Wednesday, March 30, 2016. After routing Hillary Clinton in three western-state Democratic caucuses, Sanders still faces daunting delegate math and a road ahead dominated by big-state primaries that have been the weakest link in his campaign. Photographer: Luke Sharrett/Bloomberg via Getty Images
SANTIAGO, CHILE. MARCH 30, 2016. Chefs chat as an Airbus A350 XWB long range jet airliner performs a demonstration flight at the FIDAE 2016 aerospace exhibition, at Comodoro Arturo Merino Benitez International Airport. Marina Lystseva/TASS (Photo by Marina Lystseva\TASS via Getty Images)
GOMEL REGION, BELARUS. MARCH 28, 2016. Hunters using decoys take aim with their guns while drake hunting in spring on the Pripyat River in the Losiny Ostrov game ranch. Viktor Drachev/TASS (Photo by Viktor Drachev\TASS via Getty Images)
HAVANA, CUBA - MARCH 25: Rolling Stones fans wait for the start of a free concert March 26, 2016 in Havana, Cuba. Thousands of fans waited for the Rolling Stones to play for the first time in Cuba, after the music was once banned by the government. (Photo by Joe Raedle/Getty Images)
A Cuban migrant couple rests inside a tent at a provisional shelter in Paso Canoas, at the border with Costa Rica March 20, 2016. More than 1,500 Cuban immigrants are currently waiting at Costa Rica's southern border with Panama as they seek overland passage towards the United States, according to local officials. REUTERS/Carlos Jasso TPX IMAGES OF THE DAY
A businessman looks at cherry blossoms in almost full bloom in Tokyo, Japan, April 1, 2016. REUTERS/Issei Kato TPX IMAGES OF THE DAY
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As we head into a new month, take a few minutes to look back at the past week's biggest stories -- including the deadly collapse of an overpass under construction in India, the ongoing campaigning for the United States' 2016 presidential election, and the beginning of spring across the Northern hemisphere.
Click through the slideshow above to see photos from all of these headlines and more, and be sure to check back next weekend for our selection of the best photography from the coming seven days.