The Windham Textile Museum in Willimantic is described as haunted due to reports of unexplained phenomena, including extreme cold spots on the third floor, eerie sounds, a sense of being watched on the second floor, and a mysterious instance where a previously locked bank vault was found open. Third Floor: Visitors and witnesses have reported feeling sudden, extreme cold spots and hearing strange, eerie sounds on the museum's third floor. Second Floor: Some people have described a feeling of unease or a sensation of being watched while on the second floor. The Bank Vault: A notable event includes a previously locked bank vault within the museum being found open the day after it was confirmed to be secured.