Restaurant overlooking Emerald Lake, with Mount Burgess beyond, in evening light, Yoho National Park, UNESCO World Heritage Site, British Columbia (B.C.), Canada, North America

Emerald Lake Lodge and Mount Burgess in the Canadian Rockies, Yoho National Park, UNESCO World Heritage Site, British Columbia, Canada, North America

Burgess house, Paseo de Montejo, Merida, Yucatan State, Mexico, North America

Ogygiopsis klotzi, fossil, trilobite 50mm long with small fault through it, Cambrian, Burgess Shale, Yoho, Canada, North America

Cardiff Castle, The winter smoking room, Cardiff, Wales

Cardiff Castle, Banquet Hall, Cardiff, Wales

Cardiff Castle, detail, mosaic in The roof garden, Cardiff, Wales

Cardiff Castle, The roof garden, Cardiff, Wales

Cardiff Castle, stained glass window, in Banquet Hall, Cardiff, Wales

Cardiff Castle, window in the dining room, Cardiff, Wales

Cardiff Castle, The winter smoking room, Cardiff, Wales

Norman Keep, Cardiff Castle, Cardiff, Wales

Cardiff Castle, detail of mosaic in the Nursery; representation of Robinhood and his companions, Cardiff, Wales

Fossil found in the shale at Burgess Shale in Yoho National Park, BC, Canada, British Columbia, Canada

Trilobite fossil found at Burgess Shale in Yoho National Park, BC, Canada, British Columbia, Canada