我们在旅行中看到了一座古老的纪念碑。

We saw an ancient ___monument during our trip.

在这些城市，你将能够参观古老的纪念碑。

In these cities you will be able to visit ancient ___monuments.

这座纪念碑因其历史重要性而受到政府保护。

The ___monument is protected by the government because of its historical importance.