The world in photos: April 13-19

Children place the last petals to a portrait of painter Vincent Van Gogh done with flowers at the Keukenhof park, also known as the Garden of Europe, in Lisse, the Netherlands, April 15, 2015. Keukenhof, which employs some 30 gardeners, is considered to be the world's largest flower garden and displays millions of flowers every year. [Photo/Agencies]

Flower fields bloom, brighten the Netherlands. Hillary Clinton held her first campaign tour in US State of Iowa. South Koreans mourn on anniversary of ferry disaster. Israel comes to a halt to remember Holocaust. Here's a look at some of the most striking images from major stories around the world in the past week.