TRAIPSING through an abandoned hospital, a photographer's heart skipped a beat when a door slammed shut.
A shiver rippled through the spine of intrepid explorer Dax Ward as he tentatively carried on creeping around the deserted Nawanakorn Hospital in Bangkok.
Having shut down more than a decade ago, the clinic in Thailand's capital has captured the attention of many wannabe paranormal investigators and snappers alike.
It is understood the once-thriving hospital was forced to stop treating patients after funding dried up.
Since then, it has stood derelict - with wheelchairs, beds and equipment still furnishing the rooms in a chilling reminder of its past.
Photographer Dax told The Sun the hospital was gripped by an "unsettling feeling" as he trailed the dim corridors.
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He was met by the owner who showed him around the sinister-looking site for two hours.
In one disturbing moment, Dax said a door suddenly closed with a thud - despite it being propped open with heavy objects.
He said: "I had a moment of shock as a door somehow managed to shut on its own while I was taking pictures in the operating theatre.
"My friend Kay On, a paranormal investigator from Malaysia, had the same experience in the same room when he was live streaming at around midnight.
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"The door of the operating theatre shut on its own - which gave him and his viewers a moment of surprise."
Haunting images show the walls blackened with mold, rusted equipment, and a wheelchair perched in a hallway.
Other shots reveal the dull beige seats patients would have waited on and the uncomfortable-looking beds they would have attempted to rest in.
Dax added: "There was an unsettling feeling to the location, even during the daylight hours."
The urban explorer said the hospital has even attracted the lenses of Thai horror movies.
He added: "The hospital has gracefully withstood the test of time - remaining abandoned for well over a decade.
"The 'morgue' is a fake facade and I'm sure the random jars of various liquids are leftover props - but much of the large equipment is original to the hospital."
Meanwhile, another abandoned hospital has been dubbed the "most haunted place on Earth".
Explorers claim they have heard dolls talk and even seen red glowing eyes.
Yorktown Memorial Hospital in Texas was founded in 1950 by a catholic group the Felician Sisters and was used as a rehabilitation centre for those suffering from drug and alcohol abuse.
After 30 years of service, it eventually closed in 1980 and was left abandoned.
It's since become a hotspot for thrill-seeking ghost hunters around the globe.
And a psychiatric hospital has been left to rot for more than 40 years - despite being valued at an eye-watering £7million.
The crumbling Great Barr Hall in Birmingham was previously a magnificent building, but has become a stomping ground for local louts.
Known to locals as 'Maggies', the hospital shut down in the late 1970s and has been falling apart ever since.
Plans were introduced to restore the iconic landmark and build homes on its Green Belt.
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However, the proposal fell through due to local outrage, with hundreds of residents opposed to the plans.