The Toros express travels through the Turkish countryside from Istanbul to AleppoPhotograph: Vicky FrostTraditional embroidered throes and carpets hang from a small trading warehouse in the Aleppo soukPhotograph: Vicky FrostA local man plays the oud (an Arabic lute) in Beit as-Sissi restaurant, inside a restored 17th-century house in the old city of AleppoPhotograph: Vicky FrostThe view from inside Aleppo's citadel, looking out over the Great MosquePhotograph: Vicky FrostMid-afternoon on the dusty Roman colonnade at Palmyra, a desert oasisPhotograph: Vicky Frost/vicky frostRoman arches in Palmyra at dawn … the best time to see them (when it's not so hot or dusty!) Photograph: Vicky Frost/vicky frostA camel tour helmed by Bedouins leaves Palmyra in the morning Photograph: Vicky Frost/vicky frostRoman columns and arches over the entrance to the main street in the Damascus soukPhotograph: Vicky Frost/vicky frostInside the Umayyad Mosque in DamascusPhotograph: Vicky Frost/vicky frostInside Krak des Chevaliers, a ruined Crusader castle near HomsPhotograph: vicky frostThe view from the tallest tower at Krak des Chevaliers, looking out over the Oronte ValleyPhotograph: Vicky Frost/vicky frost