Translation of seriös

A lot of wars and pursuits, political conflicts and economic instability means that the existance of an easy life has never been granted for sure. The entire continent struggles currently with it.
The tour started soon and we first visited the ruins nearby, which was a ten minutes drive. A tour guide introduced us to each and every pyramid and told us stories about practically every stone.
On the next day we took the tour to see the Peninsula. The tour itself was very boring and the guide had really not much to say that would interest me. The area was barren and completely flat.