The 'Underworld Sun' face, which occupied the base during the 1970 expo, went missing for decades before a replica was created for permanent display.
The structure's interior was off-limits to the public for 48 years before reopening in 2018 following extensive restoration.
The tower's design includes a 'lightning rod' function, with the top Golden Mask acting as an illuminated beacon.
The Tree of Life structure is supported by a central steel core and features models ranging from prehistoric fish to dinosaurs and mammals.
The tower was originally intended to be dismantled after the 1970 expo but was preserved due to high public sentiment.
The Tower of the Sun is a 70-meter tall sculpture designed by artist Taro Okamoto as the centerpiece for the 1970 Japan World Exposition. It features four distinct faces: the Golden Mask (top), the Sun of the Sun (front), the Black Sun (back), and the underground Underworld Sun. The interior contains the 'Tree of Life,' a 41-meter high art installation featuring over 180 biological specimens tracing the evolution of life. Visitors can climb the internal staircase to observe the sculpture's structure and artwork. The tower is situated within the Expo '70 Commemorative Park in Suita. It is constructed from a reinforced concrete shell with steel framework. The design incorporates kinetic art elements and complex lighting systems. It represents a fusion of primordial symbolism and 1970s futuristic optimism.
From the 'Central Gate' area of the Expo '70 Commemorative Park for a clear, head-on view of the sculpture.
Book your entry tickets several weeks in advance as interior tours sell out quickly.
Wear comfortable shoes, as the interior tour involves navigating several flights of stairs.
Download the official park map to navigate the expansive Expo '70 Commemorative Park grounds.
Do not attempt to visit without a pre-purchased reservation, as walk-in entry to the interior is rarely available.
Closed on Wednesdays; check the official website for additional maintenance closures.
Photography is strictly prohibited inside the tower's interior sections.
