According to Greek ERT public broadcaster, there were 30 kilometers (20 miles) line of fires, with some towering as high as 80 feet and moving towards Athens.
On Monday, Athens battled the inferno that resulted from what is expected to be its hottest summer ever with Mount Pentelicus casting a long shadow in thick gray smoke.
One of them had already consumed the mountain that was known for producing the Acropolis marble and other ancient building material in Athens.
The nearby historic town of Marathon has also been ordered evacuated.
Flames had left huge black stains up the walls of brick homes on roads leading out of Marathon. Many roofs had also been burnt away by flames.
Cars burned at Dione while apartment blocks were slowly being approached by fire. Some people escaped in their cars just as the fires reached their homes according to others.
People residing in Penteli, an Athenian suburb at the foot of 1,109 meters (3,605 feet) tall mountain could only watch helplessly as strong winds associated with summers pushed flames towards their homes and up slopes of Pentelicus.
Only prayers helped in saving houses as thick smoke from burning trees filled a small square on which Mariana Papathanasi said that she used to live in Penteli area
There is still intense fire; some houses were destroyed after midnight. We are attempting to save our local restaurant,” said a 49-year-old supermarket employee who asked not to be named.
Greek authorities have now ordered thousands of people around marathon including those living near children’s hospital or military clinic at dawn so they can be somewhere else when these two institutions are vacated as early as possible.
Papathanasi told Parami: “They’ve done very good job”, “they’re close to us all times” referring to firefighters who worked next door with trucks and water-carrying airplanes.
Further up Nea Makri in the mountain, tall flames could be seen chewing down trees and shrubs and turning the ground black with head covered plants and trees that were violently shaken by the wind.
The fires are moving very fast, said Christoforos, 53, a volunteer firefighter from Penteli. ‘If they meet there Nea Makri can turn into a major problem as two large fire fronts will merge.’
Every year as global temperatures rise, Greek authorities deploy hundreds of firefighters with trucks and water-carrying planes to fight wildfires.
After Greece had its warmest winter on record, it experienced its hottest June and July since accurate record keeping began in 1960, while the summer season has already seen many smaller blazes.
Athens is expected to hit up to 39°C (102°F) on Monday with winds gusting up to 50 kilometers per hour.
Heatwaves caused by human-induced fossil fuel emissions are being made longer and more frequent or intense according to scientists globally.
According to IPCC, increasing temperatures have resulted in longer periods of wildfire risk that has spread over larger areas.
