Luciano Chiereghin is an Italian researcher who has a great interest in the history of the Po Valley, both ancient and modern. In his 2007 book Atlantide al Microscopio (Atlantis Under the Microscope) he has the plain of the Valley as the location of Atlantis (=Hyperborea) and specifically the ancient town of Adria. He also proposes that Majorca, Sardinia, Corsica, Sicily, Crete and the Peloponnese constituted the island territories of Atlantis.
However, he is not the only one to link this region with Atlantis, as Morven Robertson published a book in 2015 with a similar theme. Both authors were drawn to the Po Valley by its size and its proximity to the magnificent mountains of the Alps, which protect the plain from the northern winds.
Diego Marin has favourably reviewed Chiereghin’s book(a).
Gernot Spielvogel is a German marine geologist who has studied the Atlantis question for over 15 years and has concluded that it had been located in or near the Azores. He attributes the destruction of Atlantis to an encounter with a comet which split into seven pieces, some of which landed in the Alps and Vietnam as well as the Azores region.
He claims to have fragments of the impactor as well as artefacts to support his theory on display in the Atlantis-Institut in Überlingen on Lake Constance.*Unfortunately, the Institute closed following the death of Tollmann. However, it was revived under the name of forschungszentrum-atlantida (Atlantis Research Centre)(b). Although the new entity still includes Atlantis research among its activities, it has expanded into other areas, including Climate Research, Enlightenment and Archaic Medicine among others. The latter seems to be managed by Regina Rohrmüller-Spielvogel who claims to have discovered the healing properties of precious stones and minerals. At this point I felt Atlantis slipping away!
In 2013, Gernot Spielvogel co-authored Sonnenbomben in which it is suggested that the Tunguska event was caused by a solar plasma ‘bomb’.