Burton's best-known achievements include: a well-documented journey to Mecca in disguise, at a time when Europeans were forbidden access on pain of death; an unexpurgated translation of "One Thousand and One Nights" (commonly called "The Arabian Nights" in English after early translations of Antoine Galland's French version); the publication of the "Kama Sutra" in English; a translation of "The Perfumed Garden", the "Arab "Kama Sutra""; and a journey with John Hanning Speke as the first Europeans to visit the Great Lakes of Africa in search of the source of the Nile.