The tower / donjon (天守閣; Tenshukaku) of Osaka Castle (大坂城; 大阪城; Ōsaka-jō), in Osaka, Japan.
Osaka Castle was originally constructed in 1583 by Toyotomi Hideyoshi on the previous site of Ishiyama Hongan-ji, which was destroyed by Toyotomi's predecessor Oda Nobunaga in 1580. The castle included a eight storey main tower with three storeys below ground and five above. The outside of Tenshukaku was decorated with designs covered in gold leaf to impress visitors to the castle, and was completed in 1585.
In 1614 the castle was attacked by Tokugawa Ieyasu, who had the outer moat filled in. Later in 1615 Tokugawa returned and took the castle, and the tower was destroyed. His heir, Tokugawa Hidetada, then began to rebuild the castle in 1620, with construction of the new Tenshukaku completed in 1626.
In 1665 the tower was again destroyed when it burnt down after being struck by lightning. The tower was then not rebuilt until 1931 after the mayor of Osaka managed raise enough donations for the project. This third Tenshukaku was built using modern construction methods, and the inside of the tower is quite different to how it would have been previously.
The tower was renovated in 1997, and today houses a museum with a viewing platform near the top.
The large stone wall (石垣; Ishigaki) at the base of the tower was made from blocks of interlocking stone, with no mortar. Many of the stones used in the castle's construction were brought here from quarries near the Seto Inland Sea, over 100km away.
NEFs converted with -1.3 exposure compensation in CNX2
Images blended for exposure in PS CS5
Topaz Adjust 4 using Photo Pop preset applied in luminance blend mode in PS CS5
Clouds burned in PS CS5
Black & White adjustment in PS CS5