Construction has begun on a giant observation tower in the heart of the Amazon Basin to monitor climate change.

亚马逊盆地腹地开始建设一个巨大的望塔，用于监视气候变化。

And always vigilant were many look-out towers.

许多望塔总是保持警惕。

We headed straight for the observation towers.

我们就直奔望塔。

Rooftops and lookout towers are your best bet as they'd be relatively easy to defend.

顶和望塔是您最好的选择， 因为它们相对容易防御。

From the observation post, look out upon the eerie silence of the DMZ, the 2.5-mile wide buffer zone that separates the two Koreas.

从望塔望去 您可以看到非军事区的诡异寂静，这块 4 公里宽的缓冲区 将韩国一分为二。

Over the coming years, the barrier was strengthened with spike strips, guard dogs, and even landmines, along with 302 watchtowers and 20 bunkers.

在接下来的几年里，屏障通过钉条、警犬甚至地雷以及 302 个望塔和 20 个掩体得到加强。