Wondrous
Part of speech: adjective
Definition: Amazing, inspiring awe, "to be marvelled at".
Example sentence: My dad was a Muslim and would pray five times a day. I would pray with him as much as I could, in the morning before school. Sometimes he would tell us moralistic tales about genies, magic carpets and wondrous lands. My mother is not religious - she's just English.
Marvellous
Part of speech: adjective
Definition: Exciting wonder or surprise; astonishing; wonderful.
Example sentence: I want to give my compliments to Australia. Ever since your government paid a few million dollars for a Jackson Pollack painting, I figure that it must be a marvellous country.