The GHI team investigates the Duran Sanatorium in Cartago, Costa Rica, and then flies to Montego Bay, Jamaica, to the Rose Hall Great House.
The GHI team visits a San Lucas island, where many of Costa Rica's worst criminals were sent from 1873 until 1991.
The GHI team remains in Tasmania to investigate a building that used to be the island's Supreme Courthouse. But its walls also had a darker purpose at one time- it was originally built to be a prison, and execution ground. Then they fly to Malaysia to investigate Kellie's Castle, a fabulous mansion built upon a tragedy- dozens of the Hindu workers died from sickness during its construction.moreless
The GHI team travels to Tasmania, where they investigate a haunted former prison.
The GHI team travels to Australia to investigate one of the most haunted sites in the country, Sydney's quarantine station.
The GHI team begins in the Eden Hotel of La Falda, Argentina, where the ghosts of a young girl and a baby boy are said to make themselves heard. Then they travel to Junee, Australia, to the Monte Cristo Homestead, where apparitions, voices and footsteps all seem to indicate that the Crawley family are still in residence.moreless
The team travels to the Gran Hotel Viena located in Miramar, Argentina, where legend has it Adolph Hitler secretly spent his final days. Does his ghost, and that of his fellow Nazi soldiers haunt it halls yet?moreless
The GHI go to two locations in Chile: at the first, they try to contact the ghost of a priest, and then later, visit a library said to be haunted by one of its former librarians.moreless
The GHI team travels to Tuscany, where they look for the spirit of a girl walled inside a castle by her parents. Later, they visit a duke's palace in Genoa where there are several ghost reported to haunt its rooms.moreless
The GHI team visits a pair of Austria's reputedly haunted castles: Moosham Castle, also known as the Witches Castle after its history of it brutal witch trials, and Schloss Porcia, where the evil spirit of the Baroness Katharina of Salamanca is said to still walk its halls.moreless
The GHI team probes a castle in the Czech Republic that was allegedly built over a portal to Hell.
The bones of a saint are examined in the Czech Republic. The GHI team probes paranormal claims links to a dead landlord in Northern Ireland.
The GHI Team visits Wicklow, Ireland to probe an 18th Century prison in the Second Season Premiere.
In the season finale, the team hit Latvia and spend a night investigating a former Soviet military prison. There's the tragic story of a female hanging following her lover's death and sightings of her spirit and an officer being surprised in the washroom by a paranormal appearance. What will the team find?moreless
The GHI team travels to France, where they investigate a chateau that was used as a base by the Nazis. Then, they explore the Paris Underground, a collection of subterranean passages belonging to an ancient quarry.moreless
Castles in Spain are the focus this week as GHI visits Madrid first where a castle was said to be cursed, and has bones buried in the walls and a previous owner was deeply interested in the occult. Then a castle in Celra where a plumbing problem means a call to Jason and Grant back in Rhode Island and light bulbs apparently unscrew themselves.moreless
GHI are investigating in the Philippines. First at the Clark Air Base Hospital where security staff are scared, hearing cries from dying Vietnam soldiers, babies crying, and seeing apparitions. Second, the team explore the Diplomat Hotel, a former sanitarium where people were tortured and killed by occupying forces and now unexplained figures are seen.moreless
Denmark's oldest castle holds a grisly past – a pregnant noble lady was walled in by her family – and it is believed her spirit is still there. GHI goes to investigate and Joe has some unusual and painful supernatural contact in the dungeon. Back in Brazil, a Cultural Centre built on the site of slave burials is reported to be haunted by shadow people.moreless
The GHI team visits a former vicarage in Sweden's far north, where it is said that a woman who died in childbirth returned to the room where she died. Next, they investigate the Fortress of Varberg, which is reputed to be haunted by a headless knight, among others.moreless
In Denmark, a local paranormal investigative group need GHI's help at Trekroner Fort, a place filled with shadows and noises. Then it's back to Peru where a private home has a face at the window and a second floor that shakes, terrifying its occupants.moreless
The team is in Brazil where they investigate a hotel full of ghosts in a supposedly cursed city. Then they look into the Little Castle where a feud between brothers ended in murder.moreless
GHI heads to Peru, to investigate the Real Felipe Fortress which is said to be haunted by the ghosts of desperate prisoners and a small boy who runs across a room.
For the mid season finale, the team investigate castles in Transylvania. First, they tackle Banffy Castle where renovations have revealed a secret room and shadows that spook the students. Then, to Dustin's delight, GHI spend the night at Poienari Castle in Curtea De Arges, a former home of Vlad the Impaler, the man who became known as Dracula.moreless
The team heads to Slovenia to investigate Predjama Castle and the Bathory Ruins at Cachtice Castle, the former home of the infamous Countess Elizabeth Bathory.
The team travels to Cape Town, South Africa where they visit a hotel with the ghost of a former resident prositute. Then they investigate the historical Cape Town Castle.
North Wales' Bodelwyddan Castle is investigated.
Ireland's Charleville Castle and Samlesbury Hall in England are investigated.
England's Woodchester Mansion and Wellington Opera House in New Zealand are investigated.
New Zealand's Larnach Castle is investigated.