Attics, basements and lofts are often home to a variety of weird and long-forgotten items.
From old family photos to unfashionable furniture and old school trophies, this is one of the areas of the home that can often tell hundreds of stories.
But when one woman looked in her attic recently, she was left stunned to find a huge, unusual structure attached to the ceiling.
Taking to Facebook, the homeowner in Australia asked social media users for help with identifying the object which looked like plaster or foam.
With a stunned emoji, the woman asked: “Anyone know what kind of nest this is?”
One user replied: “I think you need an exorcist for that.”
Another added: “How do I un-see these photos? Instructions please.”
It was later agreed in the comments that the nest belonged to European wasps, meaning that an unidentified number of the wasps were potentially living in the attic.
The homeowner updated her post to name the nest and she then thanked the commenters for their “input and a good laugh”.
She added: “They won’t reinhabit a dormant nest and it will naturally break down over time. It’s made from chewed wood and saliva.”
Speaking to News.com.au, ecologist and University of Sydney professor Dieter Hochuli confirmed the origin of the mystery nest and advised that a pest control specialist should be called.
Pest control teams would be able to identify if the nest was active and then be able to plan for its safe removal.
Professor Hochuli also warned about the dangers of the wasps to humans.
He said: “[The wasps] can cause anaphylaxis but it isn’t particularly common. People who know they are susceptible will often carry kits to treat it if they do go into shock.”
The professor added that the nests get bigger during the warmer parts of the year when the queen wasps look after the wasp larvae until they are able to become workers.
Professor Hochuli said: “That’s when things really ramp up with nest construction and you start to see those really big nests emerging.
“The nest just keeps growing over summer and then it all starts again in autumn with a new group of males and queens.”