Located just to the side of Zenkoji’s main hall, Daihongan (founded in 642 AD) is one of the key temples on the grounds, and while its main hall is usually closed to visitors, the complex includes several interesting places that are easy to miss if you don’t know they’re there.

The temple grounds have two entrance gates (left and right). I recommend starting from the left gate to follow the most efficient path. As you enter, you’ll see two small booths—one on the left, one on the right.

Start with the left booth, where you can receive a beautiful seasonal goshuin (temple stamp). The designs change depending on the time of year, and the winter version is especially stunning—one of the most unique I’ve ever seen.

Just beyond this booth to the left, you’ll find a small museum dedicated to candy boxes from around the world. Yes, it’s a bit unexpected for a centuries-old temple—but that’s part of the charm! Inside, there are also a few antiques and a serene statue of the Zenkoji Buddha. Entry is free, and it only takes about 10–15 minutes to walk through. If you're short on time, it's okay to skip it, but if you're curious, it's a fun and quirky stop.

Next, return past the goshuin booth and head toward the right-hand side of the grounds, where you'll find the second booth. Here you can buy omamori (amulets) and, what really stood out to me, beautiful hand-painted daruma dolls—some of the prettiest I’ve seen, and quite reasonably priced (around 1,500 yen at the time of my visit).

At this same booth, you can also buy a ticket for the Treasure Hall and Inner Garden, located behind the fountain, further to the right. Don’t worry if it sounds confusing—once you’re there, it’ll make perfect sense, and the person at the booth can point you in the right direction.

The Treasure Hall is rarely crowded (I was the only one there), but it houses a surprisingly impressive collection of religious and historical items. If you’ve already purchased a goshuin, you can get a discounted combo ticket for the hall.

Important: Before entering the museum, make sure to take off your shoes at the base of the stairs. There are slippers provided on the rack inside.
Taking photos in the treasure hall is NOT ALLOWED.