Pondělí, 22:00 ![Secrets In The Sand](/img/united_kingdom/reviews/sky_history_plus_1/secrets_in_the_sand.jpg)
Secrets In The Sand
Singing Sands & Saudi Howling Cave: Strange sounds emanating from sand dunes in the Mongolian desert are investigated, while the ruins of a lost Roman city may have been found. (S1, ep 6)