This is the 3836th most frequent Spanish word.
siglos
Centuries.
'Siglos' describes a continuous span of time across centuries in which the book has had an impact on literature.
Es un libro que ha influido en la literatura por siglos.
It's a book that has influenced literature for centuries.
Here, 'siglos' denotes a time period, specifically centuries, emphasizing the long history of the temples' existence.
Los templos construidos hace siglos todavía se mantienen de pie.
The temples built centuries ago still stand.
In this sentence, 'siglos' is used metaphorically to express a very long time, not literally centuries but giving a sense of prolonged duration.