
Helix maze built at a now-lost Japanese temple is a stunning architectural marvel.
On Mount Iimori in Aizuwakamatsu City, Fukushima Prefecture, you’ll find an incredibly rare and mysterious wooden structure called Aizu Sazaedo, which also goes by the official name of Entsu Sansodo. This is the only double-helix wooden structure in the world, as different passages exist within the building for ascending and descending, and it’s designed in such a way that the path from the entrance to the exit isn’t the same, so those who visit to pray won’t encounter anyone leaving inside.
Built in 1796, when the site was home to a temple called Shosoji, Aizu Sazaedo gets its name from the fact that it’s located in Aizu, and is shaped like a sazae, or “turban shell“. With “do” meaning “hall” or “temple”, Aizu Sazaedo translates as “Aizu Turban Shell Hall“, and not only is it stunning to look at from the outside, with its diagonally sloping layers, it’s even more incredible inside.
▼ This 16.5-metre (54.1-foot) tall building is said to have been created by Ikudo, the head priest of Shosoji.
Three dragons are wrapped around the entrance to the building, which was designated as a national important cultural property in 1996.
Admission is priced at 400 yen (US$2.80) for adults, 300 yen for high school and university students, and 200 yen for elementary and junior high school students.
When you enter the hall, it really feels as if you’re entering a turban shell, with only one direction available, up the spiral slope on the left, past the figure of Ikudo.
This passage spirals clockwise around the building, and as you can see, there are no stairs — simply a slope lined with non-slip slats to give you steady footing on the ascent.
In the past, the 33 Saigoku Kannon were enshrined along the unique double-helix slope, so that by visiting this hall, worshippers could gain the same spiritual blessings as visiting the 33 Buddhist temples along the Saigoku Kannon Pilgrimage in the Kansai region of Japan. It’s believed that pilgrims who collect treasure seals from all 33 temples along the 1,000-kilometre-plus-long (621-mile-plus long) pilgrimage will be able to travel to the Pure Land of Paradise.
▼ While the Kannons no longer remain, the building retains its otherworldly atmosphere so journeying up the slope feels like a spiritual experience.
In place of the 33 Kannon statues, there is now a framed picture of Japan’s 24 Paragons of Filial Piety, an account of moral exemplars that helped to inform the morals of the Aizu clan.
After one-and-a-half rotations, you reach the top of the building, which has a stunning hexagonal ceiling covered in senjafuda and an arched bridge known as a “Drum Bridge”.
Senjafuda are votive stickers that bear the name of the person who owns them, so worshippers have long been using them as a way to leave their mark on temples and shrines. The senjafuda here range from the very new to the very old, and once you’ve made yourself dizzy looking at them, it’s time to head over to the downward slope.
The way the passageways sit inside building is hard to visualise when you’re inside, but essentially the upward ceilings also act as the downward floors. It’s easier to understand if you liken it to the look of a DNA molecule, which also displays a double-stranded helix structure.
The descent is also one-and-a-half rotations, creating a total of three rotations, which is why this structure is officially known as “Entsu Sansodo”, which translates as “Three Round Turns Hall”.
Buddhists commonly circle around a sacred idol or object three times to show devotion, so everyone who visits can take part in this act of circumambulation.
The slope continues in a one-way direction until you reach the rear exit, where you’re likely to step out into the world with a renewed sense of awe at the amazing ingenuity of the unique structure. It’s a breathtaking site that will leave a profound impression on everyone who visits, and it’s not far from the Weakling Gundam and Japan’s UFO Village, two more modern-day marvels.
Site information
Aizu Sazaedo / 会津さざえ堂
Address: Fukushima-ken, Aizuwakamatsu, Ikki-cho, Yahata Takizawa 155
福島県会津若松市一箕町八幡滝沢155
Hours: 8:15 a.m.-sunset (April-November); 9:00 a.m.-4:00 p.m. (December-March)
Website
Photos © SoraNews24
● Want to hear about SoraNews24’s latest articles as soon as they’re published? Follow us on Facebook and Twitter
[ Read in Japanese ]














Japan’s final Penguin Suica train cards have already shipped, and when they’re gone, they’re gone
Farewell Final Ceremony announced for Tokyo’s life-size Gundam statue, will stream live
Japan approves foreign resident visa renewal fee increases of up to 967 percent, starts soon
Hobonichi unveils new 2027 planners, diaries and stationery with One Piece, Suica Penguin, Hello Kitty and a must-buy Mini Techo
Nonstop flights from U.S. to Okinawa return after 54 years, making travel faster than before
Japan’s final Penguin Suica train cards have already shipped, and when they’re gone, they’re gone
Farewell Final Ceremony announced for Tokyo’s life-size Gundam statue, will stream live
Japan approves foreign resident visa renewal fee increases of up to 967 percent, starts soon
Hobonichi unveils new 2027 planners, diaries and stationery with One Piece, Suica Penguin, Hello Kitty and a must-buy Mini Techo
Nonstop flights from U.S. to Okinawa return after 54 years, making travel faster than before
Anime and Hollywood movies cross over in new Universal Studios Japan merch collection
Pizza Hut Japan creates moon-viewing sukiyaki chrysanthemum pizza for tsukimi season
Starbucks Japan adds a gooey sweet potato Frappuccino to its menu this autumn
Starting this fall, you’ll be able to take a Pokémon Jet flight to Japan
Foreign travelers arrested in Japan following smash-and-grab robbery in Tokyo shopping mall
Japan tripled its departure tax to fund tourism but is using the money on cherry blossoms and bears
Sushi Bus: Japan’s first conveyor-belt bus lets you eat sushi while sightseeing around Tokyo
Nike x One Piece collection brings Devil Fruits to sneakers and streetwear in Japan
We recommend not buying one pack of Japan’s new convenience store corn soup-flavor fried chicken
Police in Japan looking for who’s responsible for dumping 80 loaves of bread on side of road [Video]
7-year-old boy left behind on Mt. Fuji by his own dad
Anime fans can now wear a Seiko watch inspired by Japan’s One Piece Shinkansen
12-year-old British girl who went missing in Tokyo found safe after visiting anime sites around Yokohama
Air-conditioned dress shirts arrive in Japan to save working professionals from sweltering heat
Pokémon Center Online designates first Pokémon items that will require Japanese ID card to buy
Japanese toilet aims to attract foreign tourists but not everybody is happy about it
Tokyo’s newest viral dessert is like a Japanese parfait inside a bread bun [Taste test]
New Japanese vending machine at Shinkansen station sells cups of ice on platform
Study finds hundreds of people in Indonesia legally named after Naruto, Inuyasha, other anime stars
Japan announces sudden 400-percent increase in visa fees for foreigners entering the country
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Studio Ghibli has a new anime out, and there’s only one place in the world where you can see it
Starbucks Japan releases new drinkware and goods for Valentine’s Day
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Japan’s newest Shinkansen has no seats…or passengers [Video]
Tokyo subway installing new ticket gates that don’t accept payment through Suica or other IC cards
Japanese ninja certification exam attracts 131 candidates from Japan and abroad
Salomon releases Japan-exclusive Mt. Fuji hiking gear that doubles as an amazing souvenir
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
Anime and Hollywood movies cross over in new Universal Studios Japan merch collection
Pizza Hut Japan creates moon-viewing sukiyaki chrysanthemum pizza for tsukimi season
Starbucks Japan adds a gooey sweet potato Frappuccino to its menu this autumn
Starting this fall, you’ll be able to take a Pokémon Jet flight to Japan
Foreign travelers arrested in Japan following smash-and-grab robbery in Tokyo shopping mall
McDonald’s Japan reveals exclusive new Tsukimi moon viewing collection for 2026
Family Mart reveals new T-shirt uniforms, relaxes hair colour rules for staff… but is it all too casual?
Godiva Japan hops into tsukimi season with bunny and moon-themed chocolate assortments
Tokaido Lumière Express: Stay overnight inside the Shinkansen from Osaka to Tokyo
No, Japan’s prime minster did not make friends with a cockroach, despite what you may have heard
Japan tripled its departure tax to fund tourism but is using the money on cherry blossoms and bears
Amid foreign sex tourist rise, Japanese government considering outlawing paying for prostitution
Ministop brings bulked up Okinawan-style rice balls to mainland Japan for one week only
Nike x One Piece collection brings Devil Fruits to sneakers and streetwear in Japan