The holy and glorious Virgin-[[martyr ]] '''Theodora of Vasta''', Arcadia, Megalopolis, of the Peloponnese in Greece, is commemorated by the Church on [[September 11]]. She is not to be confused with St. Theodora of Alexandria (d. 491) who is commemorated on the same day. She is reported to have lived in various centuries: third,{{citation}} seventh,<ref>[http://users.hol.gr/~spyrosy/vasta/ Το θαύμα στη Βάστα] (Greek)</ref> tenth,<ref>[http://www.thranesen.dk/?cat=686&aid=6535&back=12_3758_tid_ASC#bm6535 Theodora den hellige fra Vasta - munken, der rettelig var en kvinde] (Danish)</ref> and eleventh.<ref>[[w:Vasta|Vasta]] on Wikipedia</ref>

The Chapel of St. Theodora is located just outside the village Vasta of Megalopolis in the Peloponnese of Greece. It was built between the 10th and 12th centuries. According to tradition, the construction of the [[church ]] is intimately linked with the [[martyr]]dom martyrdom of Theodora. Just before being executed, she prayed to God:

This small [[chapel ]] supports 17 large trees that emerge from the roof and the walls of the chapel. Each tree weighs close to a tonne and stands over 20 metres high. For hundreds of years, the roots have not been visible. Locals could not find a scientific explanation for this phenomenon. Many researchers have spent years studying this structure, even X-raying the walls, but have no explanation for the roots of the trees. In 2003, a geophysical report was presented at the 4th Symposium of Archaeometry in Greece. The results of this investigation proved that the roots followed the gaps existing inside the stone wall of the chapel creating repulsion stresses between the stones and thus reaching the ground.