Young U.S. visitors pose for a photograph next to a vintage car in Havana March 16, 2016. (Photo by Ueslei Marcelino/Reuters)

People make pictures in a Soviet-era vintage subway car, with a Soviet railways emblem on the side of it, parked in the Partizanskaya subway station in Moscow, Russia, Friday, May 15, 2015. Vintage Soviet-era metro cars were exhibited at the Partizanskaya subway station as part of festivities marking the 80th anniversary of the Moscow subway on Friday. (Photo by Pavel Golovkin/AP Photo)

Armed women attend a rally to show support to the Houthi movement in Sanaa, Yemen January 13, 2018. (Photo by Khaled Abdullah/Reuters)

A girl sits on a pile of rubbish at landfill site on the outskirts of Sanaa, Yemen November 16, 2016. (Photo by Mohamed al-Sayaghi/Reuters)

A participant falls on vintage skis during a traditional historical ski race in the northern Bohemian town of Smrzovka February 21, 2015. (Photo by David W. Cerny/Reuters)

Teenagers on roller skates hold on to each other as they are pulled by a vintage car to move along a street in Havana, Cuba March 19, 2016. (Photo by Ivan Alvarado/Reuters)

“Hadhramaut (Hadhramout, Hadramawt or Ḥaḍramūt) is the formerly independent Qu'aiti state and Kathiri sultanate encompassing a historical region of the south Arabian Peninsula along the Gulf of Aden in the Arabian Sea, extending eastwards from Yemen to the borders of the Dhofar region of Oman. The name of the region is currently retained in the smaller Hadhramaut Governorate of the Republic of Yemen. The people of Hadhramaut are called Hadhramis and speak Hadhrami Arabic”. – Wikipedia

Photo: Wadi Hadhramaut, Hadhramaut Governorate, Yemen: A woman in abayas and traditional straw hats - conical witches hats, known as madhalla. (Photo by Eric Lafforgue)

Tribesmen loyal to the Houthi movement perform the Baraa dance during a gathering to show support to the movement in Sanaa, Yemen, May 19, 2016. Bara or Baraa dance is one of the several traditional outdoor dances performed by men in the country of Yemen. Bara dance literally means a dagger dance, where each dancer holds a dagger. The style of the Bara dance differs from tribe to tribe. It is performed on special occasions. (Photo by Khaled Abdullah/Reuters)