A juvenile Bennett's Wallaby (Macropus rufogriseus rufogriseus), a subspecies of the Red-necked Wallaby, on Maria Island, east of Tasmania. Red-necked Wallabies can be found in the more temperate and fertile parts of eastern Australia. They can weigh 13.8 to 18.6 kg (30 to 41 lb) and attain a head–body length of 90 cm (35 in), with the island version slightly smaller.

Photo: JJ Harrison

In the American Civil War, the Union and Confederate armies fought a series of battles as the former sought to capture the city of Atlanta, Georgia. The Confederate general John Bell Hood dissipated his army in a series of bold, but fruitless assaults, and was compelled to evacuate the city, allowing the Union to occupy it on September 2, 1864. This photo shows a roundhouse, following extensive damage from fighting.

Photo: George N. Barnard; Restoration: Lise Broer

This close-up photo of a Calliphora hilli blowfly shows facial features that are common to all insects: compound eyes and two antennae (the latter are difficult to see, as many true flies have short antennae which reduces drag). Most insects, except some species of cave crickets, are able to perceive light and dark. Many species have acute vision capable of detecting minute movement, and many are able to detect light in the infrared, ultraviolet and the visible light wavelengths.

Photo: JJ Harrison

A tinted lithograph, titled "Embarkation of the sick at Balaklava", shows injured and ill soldiers in the Crimean War boarding boats to take them to hospital facilities. Modern nursing had its roots in the war, as war correspondents for newspapers reported the scandalous treatment of wounded soldiers in the first desperate winter, prompting the pioneering work of women such as Florence Nightingale, Mary Seacole, Frances Margaret Taylor and others.

Artist: William Simpson; Lithographer: Edmond Morin; Restoration: NativeForeigner

This natural-colour image shows winter sea ice melting off the eastern coastline of Canada's Baffin Island in summer (the only clouds visible here are along the right edge). Eddies along the coast have fashioned the ice into interlocking swirls, especially near Cumberland Sound (centre). Farther north, the ice is not melting as much. The sea ice retreat captured in this image appears typical of seasonal melt. Since the turn of the 21st century, however, Arctic sea ice extent has declined sharply, experiencing a series of low summertime extents and poor wintertime recoveries.

Photo: Jeff Schmaltz, MODIS Rapid Response Team, Goddard Space Flight Center

An aerial view of Mount Kilimanjaro, the highest mountain in Africa at 5,895 metres (19,341 ft) above sea level. Kilimanjaro is a giant stratovolcano that began forming a million years ago, when lava spilled from the Rift Valley zone. Two of its three peaks are extinct while Kibo (the highest peak) is dormant and could erupt again.

Photo: Muhammad Mahdi Karim

A Boeing C-17 performs an airdrop of humanitarian aid following the 2010 Haiti earthquake. Airdrops were developed during World War II to resupply otherwise inaccessible troops. Early airdrops were conducted by dropping or pushing padded bundles from aircraft, and this evolved to using parachutes.

Photo: James L. Harper Jr., USAF

The Kea (Nestor notabilis) is the world's only species of alpine parrot, found on New Zealand's South Island. Measuring around 48 cm (19 in) in length, it is mostly olive-green with brilliant orange plumage under its wings and has a large narrow curved grey-brown upper beak. Its omnivorous diet includes carrion but consists mainly of roots, leaves, berries, nectar, and insects.

Photo: Mark Whatmough

U.S. Senator Henry Clay gives a speech in the Old Senate Chamber calling for compromise on the issues dividing the United States. The result was the Compromise of 1850, a package of five bills, the first two of which were passed on September 9. Ironically, these led to a breakdown in the spirit of compromise in the years preceding the Civil War, particularly after the deaths of Clay and Daniel Webster.

Artist: Peter F. Rothermel; Engraver: Robert Whitechurch; Restoration: Lise Broer and Jujutacular

An Australian Light Horse encampment on Mount Olivet and Mount Scopus near Jerusalem, 1918. Australian Light Horse were mounted troops with characteristics of both cavalry and mounted infantry who served during the Second Boer War and World War I. A number of Australian light horse units are still in existence today, most notably of the 2nd/14th Light Horse Regiment (Queensland Mounted Infantry), now a light armoured unit.

Photo: American Colony; Restoration: Lise Broer

A stitched panoramic view of western Manhattan, the oldest and the most densely populated of the five boroughs of New York City, as seen in February 2009 from across the Hudson River in Hoboken, New Jersey. The view spans more than 20 miles (32 km) of skyline. Highlights from left to right include the George Washington Bridge, Riverside Church, the Jacob K. Javits Convention Center, the spire of the Chrysler Building, the Empire State Building, the World Financial Center, and the Verrazano-Narrows Bridge.

Photo: Jnn13/LiveChocolate