Sunrise over Maridalsvannet in the forest areas near the outskirts of Oslo, the capital of Norway. Winter is approaching, the first snow covers the ground, and the water has already got a thin layer of ice. The temperature is significantly below the freezing point, the air is clear and the sun colors the morning clouds in deep tones. (Photo by Tore-Thiis-Fjeld/Getty Images)

Two men standing on a high catwalk, surveying the construction of the Brooklyn Bridge, with Manhattan in the background, New York City, 1877. (Photo by Museum of the City of New York/Archive Photos/Getty Images)

Shortlisted. Dragonfly, North York Moors national park, by Jonathan Green: “In June I was at May Beck with some colleagues when someone spotted this Hawker perched in a gorse bush. I love the detail on the wings, and it’s rare to be able to get so much of such a small subject in clear focus. Getting a few scratches was worth it”. (Photo by Jonathan Green/2020 UK National Parks Photography Competition)

The Slauerhoffbrug (English: Slauerhoff Bridge) is a fully automatic bascule bridge (aka tail bridge) in the city of Leeuwarden in the Netherlands. It uses two arms to swing a section of road in and out of place within the road itself. It is also known as the “Slauerhoffbrug ‘Flying’ Drawbridge”. A tail bridge can quickly and efficiently be raised and lowered from one pylon (instead of hinges). This quickly allows water traffic to pass while only briefly stalling road traffic. The deck is 15 m by 15 m. It is painted in yellow and blue, representative of Leeuwarden's flag and seal.

Aurora Borealis, or Northern Lights, shine over the plane wreck of a US Navy airplane – a Douglas Super DC-3 – on the Black Beach in Solheimasandur, south Iceland on January 18, 2018. (Photo by Owen Humphreys/PA Images via Getty Images)

The Grevy’s Illusion by Yaron Schmid, USA: a Grevy’s zebra staring at the camera in Lewa, Kenya. Third place – wildlife. (Photo by Yaron Schmid/The Nature Conservancy Global Photo Contest 2019)