Osmanagić claims that a cluster of natural hills in central Bosnia and Herzegovina are the largest human-made ancient pyramids on Earth.

[5] He settled in Houston, Texas, where he found a job as a marketing assistant for a company producing parts for oil and gas wells.

Robert M. Schoch, associate professor of Natural Science at Boston University, said at the time, "What [Osmanagić has] found isn't even unusual or spectacular from the geological point of view.

"[1] In April 2006, twenty-one historians, geologists and archaeologists signed an open letter describing the excavations as amateurish and lacking proper scientific supervision.

[1] The 'Bosnian Pyramid' project is alleged to have done considerable damage to the archaeological heritage of the area, which contains ruins of a medieval capital, Roman observation post, and earlier remains.

Anthony Harding, Professor of Archaeology at Exeter University and then-president of the European Association of Archeologists, said that, "Osmanagić is conducting a pseudo-archaeological project that, disgracefully, threatens to destroy parts of Bosnia's real heritage.

[12][13] In his 2009 doctoral thesis, Osmanagić claims that the Maya civilization of Mesoamerica predates the Olmec, and that their culture mysteriously ceased to exist after the 10th century CE.

"[19] Osmanagić also wrote, "It is my theory that the Maya should be considered watchmakers of the cosmos whose mission it is to adjust the Earthly frequency and bring it into accordance with the vibrations of our Sun;... Their ancestors, the civilizations of Atlantis and Lemuria, erected the first temples on energy potent points of the Planet.

"[20]In his book Alternative History (2003, published in Bosnian), Osmanagić suggests that Hitler and other leading Nazis escaped from Germany at the end of World War II to an underground base in Antarctica.