In Madagascar, Joanna discovers the secrets of the world's second most expensive spice, vanilla - from the unique way it's grown to how it's dealt on the streets. Joanna Lumley's Spice Trail Adventure, watch tonight at 8pm or stream now: www.knowledge.ca/program/joanna-lumleys-spice-trail-adventure | Knowledge Network

Kayak through sea caves, snorkel in crystalline waters and hike to breathtaking vistas. Now's the time to see the “Galapagos of North America” with Santa Barbara Adventure Company. | Visit Santa Barbara

25 reactions | Joanna travels from the snow-crested peaks of the High Caucasus in Georgia to the luxurious Baku in Azerbaijan, taking in the delicacies, art and history of the regions. Joanna Lumley's Silk Road Adventure, watch tonight at 8pm or stream now: www.knowledge.ca/program/joanna-lumleys-silk-road-adventure | Knowledge Network | Facebook