Shipping containers sit idle at the ports of Los Angeles and Long Beach, California in this aerial photo taken February 6, 2015. The loading and unloading of cargo freighters has been suspended at all 29 U.S. West Coast ports this weekend because of chronic slowdowns on the docks that shippers and terminal operators have blamed on the dockworkers' union, the companies said Friday. (Photo by Bob Riha, Jr./Reuters)

A contestant performs in wooden Pujllay dance shoes known as “ojotas”, in a contest to elect the Queen of Great Power, in La Paz, Bolivia, Friday, May 24, 2019. The largest religious festival in the Andes choses its queen in a tight contest to head the Festival of the Lord Jesus of the Great Power, mobilizing thousands of dancers and more than 4,000 musicians into the streets of La Paz. (Photo by Juan Karita/AP Photo)

A crew members walks on the flight deck past Super Etendard fighter jets aboard France's Charles de Gaulle aircraft carrier on missino in the Gulf, January 29, 2016. (Photo by Philippe Wojazer/Reuters)

French artist Olivier Grossetête used three enormous helium balloons to float a rope bridge over a lake in Tatton Park, a historic estate in north-west England.

Members of the Compagnie 1602 take part in a procession in Geneva December 14, 2014. The annual procession of the Fete de l'Escalade has been held since 1926 and commemorates local resistance to the December 11, 1602 surprise attack by the troops of the Duke of Savoy. A popular symbol of the resistance is the figure of Mere Royaume pouring hot soup from her caldron onto the soldiers. A chocolate replica of the cauldron is widely available during the three-day celebrations. This year marks also the 200-year anniversary of the entry of the Canton of Geneva in the Swiss Confederation. (Photo by Pierre Albouy/Reuters)