An ancient sacred precinct and the seat of Pythia, the major oracle who was consulted about important decisions throughout the ancient classical world. The ancient Greeks considered the centre of the world to be in Delphi, marked by the stone monument known as the omphalos (navel).

According to the Suda, Delphi took its name from the Delphyne, the she-serpent (drakaina) who lived there and was killed by the god Apollo (in other accounts the serpent was the male serpent (drakon) Python).

The Temple of Apollo Sosianus (previously known as the Apollinar and the temple of Apollo Medicus is a Roman temple dedicated to Apollo in the Campus Martius, next to the Theatre of Marcellus and the Porticus Octaviae, in Rome, Italy.

Donar's Oak (also Thor's Oak or, via interpretatio romana, Jove's Oak) was a sacred tree of the Germanic pagans located in an unclear location around what is now the region of Hesse, Germany. According to the 8th century Vita Bonifatii auctore Willibaldo, the Anglo-Saxon missionary Saint Boniface and his retinue cut down the tree earlier in the same century. Wood from the oak was then reportedly used to build a church at the site dedicated to Saint Peter. Sacred trees and sacred groves were widely venerated by the Germanic peoples.

The Acropolis of Athens and its monuments are universal symbols of the classical spirit and civilization and form the greatest architectural and artistic complex bequeathed by Greek Antiquity to the world.

YGGDRASIL, THE WORLD TREE, IS a tree from Norse mythology that was said to have held the entire world in its branches. Its three roots stretched into three different wells, one of which is known as Urdar’s Well.

A trip to the legendary well is less impossible than you may think—you just need to Gamla Uppsala in Sweden. According to a sign at the site, the well was excavated in the early 20th century, dates back to the 1180s, and is thought to have been built together with an old Church. 

The tree it once held is mentioned in Poetic Edda, the 13th-century collection of Old Norse by Snorri Sturluson. If you visit the site today, you sadly won’t see any mythological, constantly green tree towering above the burial mounds. There is, however, a stump with some small branches.

Caill Tomair (Middle Irish 'Thor's Grove') was a sacred grove dedicated to the North Germanic god Thor. Located near the Norse-Gaelic city of Dublin, the grove was destroyed by forces led by Brian Boru early in the year 1000 AD.

According to scholar Poul Holm, the grove was likely targeted due to its role among the local population.