Very large and high halls.

Very large and high halls.
When there is a trade fair, it is always clean and well prepared.
Toilets are there, they are easy to find, they are also clean.
Unfortunately, parking is very expensive, because you do not consider parking somewhere nearby and then maybe walk or take a few stops by bus.
There are a lot of parking spaces and instructors, i.e. people who show free parking spaces. Outdoor parking.
A parking garage is also there.