Both in and at are correct. Neither one is better than the other. So if i am inside the mall, for example in a store i better say 'i am in the shopping mall', right?
Hidden Beach in Mexiko Der Strand der Liebe



Dalbo
Both in and at are correct. Neither one is better than the other. So if i am inside the mall, for example in a store i better say 'i am in the shopping mall', right?