Kirkendall-Spring / Lower Yellowstone Falls on the Yellowstone River viewed from Artist Point, Yellowstone National Park, Wyoming, USA, June 2013.

Kirkendall-Spring / Lower Yellowstone Falls with rainbow, on the Yellowstone River viewed from Lookout Point Trail, Yellowstone National Park, Wyoming, USA, June 2013.

Nature Production / Aerial view of rice paddy fields (Oryza sativa) fixed-point observation of seasonal changes, ploughed fields in early winter, Shiga, Japan, November, sequence 7/8

Nature Production / Aerial view of rice paddy fields (Oryza sativa) fixed-point observation of seasonal changes, summer, Shiga, Japan, early August, sequence 4/8

Sven Zacek / Hiking trail with boardwalk and viewing platform over frozen bog pools, aerial view. Endla Nature Reserve, Jogevamaa, Central Estonia. December 2016.

Enrique Lopez-Tapia / Observation tower in the rainforest, Rio Platano Biosphere Reserve and UNESCO World Heritage Site, La Mosquitia, Honduras.

Tony Wu / Dinah's gobies (Lubricogobius dinah) pair in their beer-bottle home, found at a depth of 30 metres at Observation Point in Milne Bay Province, Papua New Guinea

Tony Wu / Dinah's gobies (Lubricogobius dinah) pair in their beer-bottle home, found at a depth of 30 metres at Observation Point in Milne Bay Province, Papua New Guinea

Tony Wu / Dinah's gobies (Lubricogobius dinah) pair in their beer-bottle home, found at a depth of 30 metres at Observation Point in Milne Bay Province, Papua New Guinea

Tony Wu / Dinah's gobies (Lubricogobius dinah) pair in their beer-bottle home, found at a depth of 30 metres at Observation Point in Milne Bay Province, Papua New Guinea

Kirkendall-Spring / Lookout point on top of Mount Pilchuck, Mount Pilchuck State Park, Cascade Mountains, Washington, USA, July 2014. Model released.

Kirkendall-Spring / Lookout point on top of Mount Pilchuck, Mount Pilchuck State Park, Cascade Mountains, Washington, USA, July 2014. Model released.

Bryan and Cherry Alexander / Tourists from a ship visiting the Rockhopper penguin (Eudyptes chrysocome) and Black browed albatross (Thalassarche melanophrys) colonies at West Point Island, Falklands Islands, 2009.

Bryan and Cherry Alexander / Tourists from a ship visiting the Rockhopper penguin (Eudyptes chrysocome) and Black browed albatross (Thalassarche melanophrys) colonies at West Point Island, Falklands Islands, 2009.

Nature Production / Aerial view of rice paddy fields (Oryza sativa) fixed-point observation of seasonal changes, snow covered fields in winter, Shiga, Japan, December, sequence 8/8

Nature Production / Aerial view of rice paddy fields (Oryza sativa) fixed-point observation of seasonal changes, harvesting in late summer, Shiga, Japan, September, sequence 6/8

Nature Production / Aerial view of rice paddy fields (Oryza sativa) fixed-point observation of seasonal changes, summer, Shiga, Japan, late August, sequence 5/8

Nature Production / Aerial view of rice paddy fields (Oryza sativa) fixed-point observation of seasonal changes, summer, Shiga, Japan, July, sequence 3/8

Nature Production / Aerial view of rice paddy fields (Oryza sativa) fixed-point observation of seasonal changes, spring, Shiga, Japan, May, sequence 2/8

Nature Production / Aerial view of rice paddy fields (Oryza sativa) fixed-point observation of seasonal changes, spring, Shiga, Japan, April, sequence 1/8

Nature Production / Japanese Horsechestnut (Aesculus turbinata) woodland, fixed point observation of seasonal changes, Shiga, Japan, March, sequence 1/3

Nature Production / Japanese Horsechestnut (Aesculus turbinata) woodland, fixed point observation of seasonal changes, Shiga, Japan, November, sequence 3/3

Nature Production / Japanese Horsechestnut (Aesculus turbinata) woodland, fixed point observation of seasonal changes, Shiga, Japan, April, sequence 2/3

Edwin Giesbers / Birdwatcher at lookout point in S'Albufera National Park, Menorca, Balearic Islands, Spain, Europe May 2009

Norbert Wu / Lava Lizard (Tropidurus albemarlensis) uses position on head of Marine Iguana (Amblyrhynchus cristatus) as observation point for catching insect prey, Galapagos Islands, Ecuador

Duncan Usher / Solitary Geyser, on the eastern trail to Observation Point, Old Faithful Geyser Basin, Yellowstone National Park, Wyoming

Mike Read / Pool in grassy moorland beside track to eagle observation point with Sron Scourst and Oireabhal beyond. Isle of Harris, Outer Hebrides, Scotland, UK. May.

Mike Read / Pool in grassy moorland beside track to eagle observation point with Sron Scourst and Oireabhal beyond. Isle of Harris, Outer Hebrides, Scotland, UK. May.

Kirkendall-Spring / Tourists on viewing platform along the Firehole River in winter, surrounded by frost-covered trees and snow, Biscuit Basin, Yellowstone National Park, Wyoming, USA. January, 2022.

Orsolya Haarberg / Aerial photograph of 45m high forest tower with viewing platform 140m above sea level with view of forest and fields, within Common beech (Fagus sylvatica) forest. Camp Adventure, Denmark. non-ex...

Orsolya Haarberg / Aerial photograph of 45m high forest tower with viewing platform 140m above sea level with view of forest and fields, within Common beech (Fagus sylvatica) forest. Camp Adventure, Denmark. non-ex.

Orsolya Haarberg / People walking up spiral walkway on 45m high forest tower with viewing platform,140m above sea level with view of forest and fields, within Common beech (Fagus sylvatica) forest. Camp Adventure, Den...

Orsolya Haarberg / Aerial photograph of 45m high forest tower with viewing platform 140m above sea level with view of forest and fields, within Common beech (Fagus sylvatica) forest. Camp Adventure, Denmark. non-ex.

Orsolya Haarberg / Aerial photograph of people walking on viewing platform at top of 45m high forest tower, 140m above sea level, surrounded by Common beech (Fagus sylvatica) forest. Camp Adventure, Denmark. October. No...

Edwin Giesbers / Information board at viewpoint overlooking Pico Viejo Volcano, Teide National Park, Tenerife, Canary Islands

Edwin Giesbers / Red giant tajinaste / Mount Teide bugloss / Towers of jewels (Echium wildpretii) La Catedral viewpoint, Teide National Park, Tenerife, Canary Islands