President Barack Obama speaks at the Memorial Amphitheater of Arlington National Cemetery, in Arlington, Virginia, during a Memorial Day ceremony.

Christian Jacobs, 5, of Hertford, North Carolina, dressed as a Marine, pauses at his father’s gravestone on Memorial Day at Arlington National Cemetery in Arlington, Virginia, USA.

A man walks through the American Military Cemetery in Falciani during a ceremony marking the U.S. Memorial Day, on the outskirts of Florence, Italy.

Newlyweds Tim Chambers, a U.S. Marine, and Lorraine Heist kiss as motorcycles drive past during the annual Rolling Thunder parade in Washington, D.C., May 29, 2016.

A fox cub and a dog playing in the garden of animal caretaker Reka Soter’s house in Pomaz, Hungary, 29 May 2016.

A Sea-Watch humanitarian organization crew member holds a drowned migrant baby, during a rescue operation off the coasts of Libya. Survivor accounts have pushed to more than 700 the number of migrants feared dead in Mediterranean Sea shipwrecks over three days in the past week.

Syrian refugees children collect water at the Al-Zaatari refugee camp in Mafraq, Jordan, near the border with Syria.

Cars and debris are seen in a flooded street in the town of Braunsbach, in Baden-Wuerttemberg, Germany.

Syrian civil defense volunteers help a boy out of the rubble following a reported attack by government forces in the Tariq al-Bab neighborhood in the northern city of Aleppo.

Carlos Mario Oquendo of Colombia (2-L, up) falls along Jefferson Milano of Venezuela (2-R, bottom), during the finals of the elite men’s World UCI BMX Championship in Medellin, Colombia, 29 May 2016.

Eula Ray of Hamilton, whose son is a curator for the zoo, reads a sympathy card beside a gorilla statue outside the Gorilla World exhibit at the Cincinnati Zoo & Botanical Garden in Cincinnati, USA, May 29, 2016. A special zoo response team shot and killed Harambe, a 17-year-old gorilla, that grabbed and dragged a 4-year-old boy who fell into the gorilla exhibit moat on May 28, 2016.

Competitors tumble down Coopers Hill in pursuit of a round Double Gloucester cheese during an annual cheese rolling competition near the village of Brockworth, Gloucester, in western England.

A model of the “Altyr” fashion theater, dressed in Khakas national costumes, get over a wooden fence during a photo session, as a part of the rehearsal for the Tun-Pairam traditional holiday (The Holiday of the First Milk) celebration at a museum preserve outside Kazanovka village near Abakan in the Republic of Khakassia, Russia.