
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 ]














Kanji ice cream becomes a sell-out hit in Japan
Tokyo’s life-size Gundam anime mecha statue will be removed this summer
This Tokyo Station sweets sensation sells out daily, but we finally got our hands on it
Hundreds of rose bushes in bloom at Tokyo’s off-the-beaten-path, next-to-the-tracks flower street
Ichiraku Ramen-inspired ramen sets from Naruto anime pay homage to Naruto, Sasuke, and Sakura
Kanji ice cream becomes a sell-out hit in Japan
Tokyo’s life-size Gundam anime mecha statue will be removed this summer
This Tokyo Station sweets sensation sells out daily, but we finally got our hands on it
Hundreds of rose bushes in bloom at Tokyo’s off-the-beaten-path, next-to-the-tracks flower street
Ichiraku Ramen-inspired ramen sets from Naruto anime pay homage to Naruto, Sasuke, and Sakura
Studio Ghibli’s president is leaving the company. Will it change how they make anime?
Let’s hike a Japanese mountain (that isn’t Mt. Fuji) – Mt. Tsukuba[Photos]
The top 12 incomprehensible school rules, as chosen by high school students
Baskin-Robbins Japan’s 2026 popularity poll results are in and the champion flavor is crowned
Choc mint ice cream season hits Japan with a spectacular drinkable ice cream from Tully’s
161-year-old Kyoto confectionary maker releases new edible Pokémon lineup
7-Eleven Japan now has ramen machines…but only at 41 stores
7-Eleven Japan is releasing Greedy chocolate chip and whipped cream sandwiches
Starbucks Japan adds a new Frappuccino and Milk to the menu, but are they worth the calories?
Don’t miss the Tokyo Tower City Light Fantasia ~Summer Landscape 2026~ event during your travels
Starbucks Japan releases two new “chunky” drinks… and matching gel designs for our nails
Japan’s 5.3 million beautiful Hitachi Nemophila flowers are now in full bloom[Photos]
The average age of Japan’s hikikomori shut-ins is getting older, survey shows
Japan enters Golden Week vacation period, survey shows one in three plan to ride it out at home
New Kyoto Converse sneakers celebrate Japan with traditional kimono fabrics for your feet
Brand-new Pokémon manhole covers coming to help the recovery of a disaster-stricken part of Japan
Japan’s awesomely beautiful Alpen Route snow corridor is now open
Japan’s new Pokémon jackets give you the look and powers of the Kanto starter trio
Japan now has gyoza doughnuts, and they taste like no other doughnut we’ve tried before
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Starbucks Japan releases new drinkware and goods for Valentine’s Day
We deeply regret going into this tunnel on our walk in the mountains of Japan
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Japan’s newest Shinkansen has no seats…or passengers [Video]
Major Japanese hotel chain says reservations via overseas booking sites may not be valid
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
No more using real katana for tourism activities, Japan’s National Police Agency says
Japan reportedly adding Japanese language skill requirement to most common foreigner work visa
Studio Ghibli’s president is leaving the company. Will it change how they make anime?
Let’s hike a Japanese mountain (that isn’t Mt. Fuji) – Mt. Tsukuba[Photos]
The top 12 incomprehensible school rules, as chosen by high school students
Baskin-Robbins Japan’s 2026 popularity poll results are in and the champion flavor is crowned
Choc mint ice cream season hits Japan with a spectacular drinkable ice cream from Tully’s
7-Eleven Japan now sells canned water, but does funky packaging mean funky flavor?[Taste test]
161-year-old Kyoto confectionary maker releases new edible Pokémon lineup
Starbucks Japan releases two new “chunky” drinks… and matching gel designs for our nails
Shochu maker on remote Japanese island plays music as its spirits age, flavor varies by genre
Starbucks Japan adds a new Frappuccino and Milk to the menu, but are they worth the calories?
Self-proclaimed Americans arrested for breaking into Punch the monkey’s Japanese zoo habitat
Is the two-hour wait for Tokyo’s Yokota Gaijin Burger worth it?【Taste test】
Don’t miss the Tokyo Tower City Light Fantasia ~Summer Landscape 2026~ event during your travels
7-Eleven Japan is releasing Greedy chocolate chip and whipped cream sandwiches