Termite 'cathedral' by the Arnhem Highway near the Mary River Crossing between Darwin and Kakadu at 'The Top End', Northern Territory, Australia

A hiker in a hollow tree trunk, Cathedral Grove, MacMillan Provincial Park, Vancouver Island, British Columbia, Canada, North America

Old growth forest in Cathedral Grove, MacMillan Provincial Park, Vancouver Island, British Columbia, Canada, North America

Hiker at sunrise, Cathedral Provincial Park, British Columbia, Canada, North America

Western sword fern (Polystichum munitum) tip, Cathedral Grove, MacMillan Provincial Park, British Columbia, Canada, North America

Hiker, Cathedral Provincial Park, British Columbia, Canada, North America

Western sword fern (Polystichum munitum), Cathedral Grove, MacMillan Provincial Park, British Columbia, Canada, North America

Douglas firs and ferns, Cathedral Grove, Macmillan Provincial Park, British Columbia, Canada

Majestic view of Giant Cleft, Cathedral Lakes Provincial Park, British Columbia, Canada