Tributes left to the dead at Auschwitz second concentration camp at Birkenau, UNESCO World Heritage Site, near Krakow (Cracow), Poland, Europe

Tributes left to the dead at Auschwitz second concentration camp at Birkenau, UNESCO World Heritage Site, near Krakow (Cracow), Poland, Europe

Serra Verde Express train from Curitiba, the touristic Paranagua-Curitiba Railway, Parana, Brazil

Shunt (railroad switch) and railroad tracks, rails

"Totems" art installation by Basque artist Augustin Ibarrola, painted railway ties at the top of the Haniel spoil pile, Bottrop, North Rhine-Westphalia, Germany, Europe

"Totems, " installation art piece built from over 100 railroad ties by Basque artist Agustin Ibarrola on mining waste heaps near Bottrop, North Rhine-Westphalia, Germany, Europe

"Totems" landmark art installation created from more than 100 processed railway sleepers by Basque painter and sculptor Agustin Ibarrola, situated on snow-covered mining waste heap Halde Haniel above the pit Prosper-Haniel in winter, Bottrop, North Rhine-

"Totems" landmark art installation created from more than 100 processed railway sleepers by Basque painter and sculptor Agustin Ibarrola, situated on snow-covered mining waste heap Halde Haniel above the pit Prosper-Haniel in winter, Bottrop, North Rhine-

"Totems" landmark art installation created from more than 100 processed railway sleepers by Basque painter and sculptor Agustin Ibarrola, situated on snow-covered mining waste heap Halde Haniel above the pit Prosper-Haniel in winter, Bottrop, North Rhine-

Young woman runner getting ready run track

7 year old boy standing alone on railroad ties at sunset, New Mexico, United States of America