NOVEMBER 1 & DECEMBER 6 Photographer and filmmaker Mattias Klum guides you through some of the Earth’s natural wonders in Being There: On Expedition with National Geographic. Marvel at Klum’s still images and high-definition video from Botswana’s Okavango Delta and the rainforests of Southeast Asia. Then dive into the blue at Ocean Soul: Photographing the Underwater World for National Geographic and discover the vast, veiled world that exists beneath the waves. Brian Skerry leads you through the glacial waters of the North Atlantic and the coral reefs of the central Pacific. Roy Thomson Hall, 8 p.m., $39.50 to $59.50; visit here or call 416-872-4255 to purchase tickets.