Only in Vietnam can you enjoy a cup of coffee in a freezing venue while it is boiling hot outside. It’s freezing cold inside this café because the whole interior and décor is made out of ice — yes, even the chairs you will be sitting on. Guests are handed thermal jackets, fur hats and gloves by the café to stay warm, but no shoes. To sort of add insult into injury, they serve ice cream. Sometimes there’s a queue waiting to get inside, so calling ahead and reserving a spot is a good idea.