Square de l'Atomium, 1020 Bruxelles, Belgium
Nice and perfect design. There is a nice park around that and can walking and have a nice time there. You can reach top of that by elevator and stair and have a good view. By bus can reach it so easy.
The place is to be seen for it's amazing structure planted here and also the surrounding natural reserve which is well maintained and really good for nature walks and running or jogging. Only issue which I could see for elderly would be long walks and also depending on heat (2019 saw really hot weather) Atomium has different levels as viewing decks and you need to buy tickets to go up. Sadly I couldn't manage to get in due to long queues. Nevertheless had an amazing experience
Superb place to visit... The only thing you need to take care is timing be there before 5 pm.. You will enjoy your trip for sure...
Very cool "building"! Inside there is a lot of information about how en when it was build and renovated. You can walk through the connections and the atoms.
If you are in Brussels it's one of the attractions worth visiting. I would not recommend buying a ticket and going inside. It's more fun to see it from the outside and the nearby park and area is nice to walk around and relax on a sunny day.