People are being overcome with a primal sense of fear after watching footage of a driver making their way through a cave in China.
There are some places in the world you can drive through which make your hairs stand on end because there's just something fundamentally unsettling about them.
We've built deadly roads which have claimed hundreds of lives with far too many drivers never reaching the end of their journey.
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We've built scary haunted roads which unsettle people who make their way through mile after mile of creepy places.
We've even built roads which look so uncomfortable to the human eye that people get scared just driving up to them and now we've got another one to add to the list.
In China there's a tunnel which will take you through a cave system and out the other side but to make it you've got to navigate a series of twists and turns that are too tight to be comfortable.
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People watching a video of a car navigating this claustrophobic course have said it's making them so tense that they're 'struggling to breathe'.
The tunnel through the cave was nothing but turn after turn where the slightest wrong move could have meant a collision with rock while overhanging stone makes it look as though the entire place is pressing down upon your car.
One person said it reminded them of the 'valley of the shadow of death', while another insisted they would 'NEVER do it in person'.
Many others started to scare themselves further by imagining what it would be like to break down in the tunnel, stranding themselves in one of its many dark twists and turns with barely any light to see and perhaps not even enough space to get out of the car.
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So many said they didn't even like watching the video as it was scaring them out of their wits, but a few decided that laughter was the best medicine.
Quite a few compared the tight, twisting tunnel to a Mario Kart course, only this time if you get stuck there's no little guy on a cloud with a fishing rod to get you out of trouble.
Someone else wondered what would happen if a bunch of cars tried to go in and once and got stuck together but that's a thought we'd rather not contemplate right now.
Others expressed concern with the safety of driving through a cramped, dark cave where your only way through was a narrow tunnel that had more twists than a particularly melodramatic murder mystery.
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People wanted to know how much danger the driver was in of 'hitting the walls', while someone else suggested that gases from a car's exhaust could 'ruin the cave' over time.
In the end plenty were saying that the 'light at the end was such a relief' as they could finally breathe again once the driver was out of danger.