Anaquim Railway Bridge, near the city of Covilhã, in Portugal. It is part of the Beira Baixa Railway, that connects the cities of Guarda and Entroncamento.
<bdi><a href="https://en.wikipedia.org/wiki/en:Karl_Emil_Biel" class="extiw" title="w:en:Karl Emil Biel"><span title="German photographer (1838-1915)">Karl Emil Biel</span></a>
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MARTINS, João Paulo; BRION, Madalena, SOUSA, Miguel de; LEVY, Maurício; AMORIM, Óscar. O Caminho de Ferro Revisitado: O Caminho de Ferro em Portugal de 1856 a 1996. [S.l.]: Caminhos de Ferro Portugueses, 1996. 446 p