The church of Agia Theodora Vasta in Arkadia, Greece

Agia Theodora Vasta is a small Byzantine church with 17 holly and maple trees growing from its roof. Most of them are taller than 30 metres, and it's phenomenal that only one root, about the thickness of an arm, is visible beside the entrance.

Even more amazing is its tiny barrel-vaulted interior, where there is no sign of the trees or roots except for one wispy bit of green. Another fascinating fact about the location is that a river runs beneath this church and irrigates the trees.

Agia Theodora’s church has become a popular pilgrimage site for Greeks. Her feast day is today, September 11, and thousands of people from all across Greece will travel here to pray. Agia Theodora Vasta is known to have performed many miracles for those who pray to her.

The Holy Virgin, Martyr Theodora of Vasta, grew up in a village where the family would send the sons to fight in the army against the enemy. Having no boys in the family, Theodora decided to join the army to save her father from having to do so. Disguising herself as the soldier Theodore, she soon became one of the most valiant and brave soldiers.

A woman soon developed lustful feelings for “Theodore” and claimed that he had impregnated her. Theodora was commanded to either marry the woman or be condemned to death. Doing nothing to prove her innocence (as easy as this would be) Theodora placed her hope in God.

Being condemned to death before her execution, she prayed, “Let my body become a church, my blood a river, and my hair the trees.” On the spot where she was martyred, a spring gushed, flooding the area to become a river that still exists today.

The faithful built a small church over her spot of martyrdom, and soon, 17 enormous trees (some weighing over 1 tonne) began growing on the church's roof. The 17 trees symbolised her age when she was martyred. Countless scientific studies have occurred to uncover the mystery of 1) how the small church supports such enormous trees and 2) how these trees grew and continue to survive with no evidence of any root system reaching the ground.

Scientists have taken x-rays of the church walls, which show no signs of root formation anywhere. High-frequency geo-radar also indicated that the roots are hair thin and somehow thread their way inside the church walls to get their nourishment from the spring underneath it—quite a miracle all in itself.

Read More -Feast Day of Agia Theodora of Vasta