Things often creep people out when they look completely normal but seem to have ulterior motives.
Take this house as a prime example: with windowless rooms, no bedrooms and warehouse-style units - what was it ever used for? Or what will it be used for in the future? Whatever the answer is for the latter - it better be worth it because the property is on the market for $1 million (£715,000).
The property - which was listed on Zillow back in May - has large glass windows from the outside but when potential buyers go to take a look at the inside, they will soon realise there are no windows to be seen meaning that they're just there for show.
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If all that wasn't weird enough, the house also features a glass security window like the ones you may have seen in police stations.
According to the MailOnline, there is also two electrical grids that connect the property and a natural gas generator powered by two diesel fuel tanks in the event of a natural gas failure.
The house is marketed as the 'perfect storage spot for large wine collections, art collections, multiple cars, as well as serving as the ultimate safe house'.
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If you're wondering whether it's plonked in the middle of nowhere, the answer is no. It's situated on the corner of a tree-lined street looking inconspicuous.
Since the listing was highlighted on social media, people have started to share their thoughts over its use.
One person wrote: "Tell me you're breaking the law, without telling me you're breaking the law."
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Another added: "That's where they brought Jason Bourne during his flashbacks."
While someone else claimed to know exactly what the house was used for when they commented: "I live near that house. It was owned by our electric utility, now called Oncor."
They went on to add: "They built several of them and designed them to look like regular houses but they still stuck out like a sore thumb because they were three times bigger than the other houses in the neighbourhood."
Featured Image Credit: ZillowTopics: Property, Social Media, Community, Weird, Creepy, House