Stretching from Ludington to Benton Harbor, Michigan and to Manitowoc, Wisconsin, the Lake Michigan Triangle has inspired numerous accounts of activity that are difficult to explain by rational thought. The mystery began in 1891, when a schooner named the Thomas Hume set off across the Lake to pick up lumber. Almost overnight in a torrent of wind, the Thomas Hume disappeared along with its crew of seven sailors. The wooden boat was never found, and extensive search failed to recover even a piece of driftwood.
2. San Luis Valley
The San Luis Valley is an extensive high-altitude depositional basin in the U.S. state of Colorado with a small portion overlapping into New Mexico covering approximately 8,000 square miles (21,000 km2) and sitting at an average elevation of 7,664 feet (2,336 m) above sea level. The valley is a section of the Rio Grande Rift and is drained to the south by the Rio Grande, which rises in the San Juan Mountains to the west of the valley and flows
south into New Mexico.
3. Bennington Triangle
“Bennington Triangle” is a phrase coined by New England author Joseph A. Citro during a public radio broadcast in 1992 to denote an area of southwestern Vermont within which a number of people went missing between 1920 and 1950. This was further popularized in two books, including Shadow Child, in which he devoted chapters to discussion of these disappearances and various items of folklore surrounding the area. According to Citro the area shares characteristics with the Bridgewater Triangle in neighboring Massachusetts.
4. Bridgewater Triangle
The Bridgewater Triangle refers to an area of about 200 square miles (520 km2) within southeastern Massachusetts in the United States,claimed to be a site of alleged paranormal phenomena, ranging from UFOs to poltergeists and orbs, balls of fire and other spectral phenomena, various “bigfoot” sightings, giant snakes and “thunderbirds”.