Sumida Aquarium

Observation decks from 340 to 350 meters, one level with a glass floor to stand on, and a corridor at 450 meters with views all the way around.

Kirby's fluffy pancake and Waddle Dee burgers, with plates you can order as souvenirs, like the star-shaped glass one a dessert comes on.

An earth-themed indoor play area with a kids' garden for ages up to twelve and a separate baby garden for the youngest.

The science of salt and the world's salt resources on one floor, and the story of tobacco, from the Maya site of Palenque to the Edo period, on another.

Big wooden climbing structures, a Tarzan rope, a woodworking room and play leaders on hand, in an adventure playground run by the ward.

An earthquake simulator, a smoke room, a storm of wind and heavy rain to stand in, and a VR disaster experience for second graders and up, all free.