Maybe something that very few tourists know: there is a tunnel for pedestrians to reach the left bank.
This left bank is not really worth a visit, but it's a perfect spot for a picture of the city skyline.
(see my first picture above)
Escalators in "art deco" style take you down under the Scheldt. It's like stepping back into time. Even the rolling sound of these old wooden mastodons is unique.
There is also an elevator, very practical for bicycles or baby buggies, but less impressive than the escalotors.