My Granny Went to Market is the current favourite book in our house, it gets read at least 4 times a day (would be more, but I have limits...). Purchased on the basis that (real) Grandma is a prollific long-haul traveller, it's actually a refreshing take on a counting book.
'My Granny Went to Market, to buy a flying carpet' and then she flies around the world collecting all sorts of interesting objects before handing over the flying carpet to the reader to carry on the journey (rather a nice idea about sharing experiences and opening up horizons).
My toddler loves it because it rhymes and because of the pictures which are fabulous (Christopher Corr, I'm jealous you did them and I didn't). Childishly bright and naive they're deceptively simple, packed with detail. There are so many distinctive things to point out in each country - from animals to buildings and modes of transport, plus there are the two cats Granny picks up in Thailand which then appear on each page (complete with coats in snowy Russia) that garner excited yelps.
There's something quite clever in Stella Blackstone's use of souvenirs in the counting rhyme. I remember as a child that the highlight of someone going on a journey was what they might bring you back - the place itself wasn't really within comprehension, but the souvenir very much was. This book highlights the amazing places that go along with the things.
I can see this would be a great book for teachers as it's a really engaging way to introduce the idea of different countries and cultures - I can think of many many classroom projects that would easily stem from it.
This book is published by Barefoot Books who do some lovely (and unusual) titles with some super illustrators and are worth checking out.