Какие здесь языковые ошибки: there are so many museums, galleries and historic places that it can sometimes be a bit overwhelming. but london also have lots of other attractions that are there just for fun.the london eye a giant wheel on the south bank of a thames is one them

There are so many museums, galleries and historic places that it can sometimes be a bit overwhelming - нарушен порядок слов. Надо - it can be a bit overwhelming sometimes.
But London also have (has) lots of other attractions that are there just for fun.
The London eye, a giant wheel on the south bank of a (the) Thames, is one of them.