Visit the only museum in the world devoted entirely to parasites
Free, and there is an 8.8 metre tapeworm
The Meguro Parasitological Museum is a private research institution in Meguro, founded in 1953 by Dr Satoru Kamegai. Two small public floors sit on top of a working collection.
Why it's unique
It is the only museum anywhere dedicated exclusively to parasites. Not a parasitology wing of a natural history museum, an entire institution.
The object everyone comes for is a Diphyllobothrium nihonkaiensis tapeworm, 8.8 metres long, displayed whole in a single case. Beside it hangs a length of white rope cut to the same measurement, so you can walk its length rather than read the number. It came out of a person.
Before you go
It is free and it is private, taking no government money, so the donation box by the door is doing real work. Leave something.
It is genuinely small. An hour is plenty, and it pairs naturally with a walk down to the Meguro river rather than being a day in itself.
The gift shop is the reason half the visitors come back out smiling: T-shirts, and keyrings with actual specimens set in acrylic.