Browse the internet long enough and eventually you'll come across just about every claim

there is that some exotic corner of the Earth conceals evidence of ancient alien visitation.

One of these concerns what are claimed to be metal pipes, the remains of an ancient

advanced plumbing system in China, over 150,000 years old.

Most aliens be the only possible explanation.

We're going to find out today on Skeptoid.

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The Baigong Pipes.

Should you happen to visit Tibet anytime soon, be sure to stop by the city of Dalinga.

It's a town of most extraordinary beauty nestled on the edge of the Kaidong Basin below

a range of Himalayan hills.

There you'll find the local residents proudly displaying their most famous distinction.

...