13. Shetland Sheepdog (Sheltie)
When Calvin Coolidge was US President during the 1920s, he and wife Grace kept a veritable zoo at the White House. Among the menagerie was a white Sheltie called Calamity Jane - so named because she needed a bath every day.
We’ve put together a list of the best dog-friendly Christmas Markets and some fabulous pet-friendly places to stay nearby.