The Itsukushima shrine is one of Japan's most popular tourist attractions. It is most famous for its dramatic gate, or torii on the outskirts of the shrine, the sacred peaks of Mount Misen, extensive forests, and its aesthetic ocean view. The shrine complex itself consists of two main buildings: the Honsha shrine and the Sessha Marodo-jinja, as well as 17 other different buildings and structures that help to distinguish it. The complex is also listed as a UNESCO World Heritage Site, and six of its buildings and possessions have been designated by the Japanese government as National Treasures.

It is said to have been erected in 593 supposedly by Saeki Kuramoto during the Suiko period. However, the present shrine has been popularly attributed to Taira no Kiyomori, a prominent warlord (daimyo) who contributed heavily to the building of the shrine during his time as governor of Aki Province in 1168. Another renowned patron of the shrine was the warlord Mori Motonari, lord of Choshu, who was responsible for rebuilding the honden in 1571. It is important to note, however, that as a result of waging war against Sue Takafusa there in 1555, Motonari is said to have tainted the island's grounds by battling on the island This relates to the strict notions of sacred purity that Shinto shrines stand for. Unfortunately, the only surviving structure in Itsukushima shrine from the Kamakura period is the Kyakuden or "Guest-God's Shrine".

Kiyomori: It was not uncommon during the 16th century for daimyo to build shrines or take on other architectural projects in order to "reflect their power and splendor." The Taira are known specifically for their involvement in maritime trade with the Sung dynasty, and attempting to monopolize overseas trade along the Inland Sea.

Kiyomori was at the height of his power when he established the Taira dominion over the island. He ordered the construction of the main hall of Itsukushima Shrine as a display of reverence for the tutelary god of navigation and to serve as a base for maritime activities ... Miyajima soon became the Taira family shrine. Supposedly, Kiyomori chose the location also for the reason to further establish himself in the Heian aristocracy as one who deviated from the social norms of Shinto pilgrimage.He lavished great wealth upon Itsukushima, and he enjoyed showing the place to his friends and colleagues, or even to royal personages ...

It is also said that Kiyomori rebuilt the shrine on account of a dream he had of an old monk who promised him dominion over Japan if he constructed a shrine on the island of Miyajima, and pay homage to its kami who are enshrined there for his success in life. The renovations funded by the Taira allowed for Itsukushima to "grow into an important religious complex."