Discovery Hut was the first structure ever built on Antarctica, and remains standing today, not far from the modern McMurdo Station. It was built by the English explorer Robert Falcon Scott in 1901, as a base for first attempt to reach the South Pole.

The next explorer of the continent, Ernest Shackleton, built his first hut close to Scott's own, at Cape Royds. From here, Shackleton and his crew set out on the 1907–1909 Nimrod expedition to the South Pole.

The Cape Royds Hut was restored between 2004 and 2008 as part of the Ross Sea Heritage Restoration Project, which looks after the four historic Antarctic expedition huts. The building today appears almost untouched since the early 1900s.

Scott's Hut was the second base built by Robert Falcon Scott. Its design improved on many of the failures of Discovery hut. It was from here that the British Antarctic Expedition of 1910–1913 set on their doomed journey to the South Pole.

Inside, it's not very roomy, and when Scott was wintering here in 1911, there were 24 other crewmembers of the Terra Nova expedition crammed into every corner. The hut remains in the same state as it was in 1956, when it was dug out of the snow.

Today, this is the scene that greets many of Antarctica's visitors - McMurdo Station Airport - the busiest of the continent's airports. During the Antarctic summer, from June to December, flights are made between here and New Zealand.

While the vast majority of the continent remains unspoilt wilderness, over the past century many more bases were built. Today, hundreds of people live and work at the American McMurdo Station, sited not far from Scott's original Discovery hut.

The scientists stationed at McMurdo carry out many of the same tasks that Scott and Shackleton's men did - taking atmospheric measurements, collecting biological samples, and testing new technology - thankfully they don't have to sleep next to their experiments.

There's a lot of nothing between McMurdo and the South Pole. No plants, no animals, and very, very few people. But thankfully there's plenty of time to admire the view.

Many artists prefer to stay behind the canvas or camera, but these eminent artists didn't shy away from portraiture. Scroll to see painted portraits side-by-side with photographs.

Pierre-Auguste Renoir was a celebrated painter who lived from 1841 to 1919. In 1876, the French Impressionist captured himself in oil surrounded by hazy, overlapping brushstrokes. This piece hangs in the Harvard Art Museum.

During his later years, Renoir became stricken with arthritis, but continued to paint. He's shown painting outdoors here with a brush tied to his hand. This photograph is part of the LIFE Photo Collection

One of Mexican artist Frida Kahlo's most frequent subjects was herself. This 1954 piece, Marxism Will Give Health to the Ill, appears at the Museo Frida Kahlo in Coyoacán, Mexico.

This photo by Bernard Silberstein was taken around 1940. Kahlo is seated in front of a plain backdrop, adorned in traditional garments and a headdress of bougainvillea and white rose. Both this photo and the previous painting appear courtesy of the Museo Frida Kahlo.

In 1931, Kahlo also painted herself alongside her husband, Diego Rivera. A celebrated painter in his own right, Rivera was renowned for large, colorful frescoes. This piece currently resides at the San Francisco MOMA.

This photograph of Diego Rivera shows the artist seated next to one of the beloved dogs who lived at La Casa Azul with Kahlo and Rivera. This picture also appears courtesy of the Museo Frida Kahlo.

Midnight on Halloween is the witching hour! Throughout history, the myth of the witch has been a tool of oppression, empowerment, and an expression of all things wyrd and wonderful. But do you know these famous witches? Scroll on to test your knowledge...

We’ll kick off with some of the best known witches of all time. Depicted in numerous images, and portrayed on stage thousands of times, this coven of three contains some of the most infamous sorcerers around.

The fact there’s three of them is one of your biggest clues. If you still need a hint, take a closer look at what they’re throwing into the cauldron…… 'Eye of newt and toe of frog, Wool of bat and tongue of dog'. Have you worked it out yet?

The three witches play a pivotal role in Shakespeare’s Macbeth. Used to represent evil, darkness, chaos and conflict, their presence in the opening scene gets the play off to a very ominous start. 

Our next witch has a very different image. Although she famously called on the dark arts and used her powers against men on various occasions, she also has a number of redeeming features. 

This famous witch is best known for turning her enemies into animals. Most of her adversaries ended up as swine, although some were transformed into monsters, birds and sea creatures. 

Descriptions of this witch and her extensive powers date back thousands of years. Among the many literary works she appears in are Homer’s Odyssey, Virgil’s Aeneid, and Ovid’s Metamorphoses. So do you know which ancient sorcerer we’re talking about?

Arguably the most famous which from classical myth and literature, Circe was the daughter of the sun god Helios and the sea nymph Perse (some sources also list her as the daughter of Hecate and Aeetes). Thanks to her impressive powers, long life and  multiple cameos, Circe remains one of the most famous, and feared, witches of all time. 

Our next contender isn’t a witch but a wizard. Over the years, male sorcerers have generally been treated more kindly than their female counterparts, and this wizard is no exception. Rather than being a recluse or a bad omen, he’s often painted as an enchanter and a wise man.

A loyal companion to one of England’s most legendary kings, this witch was known for his ability to appear and disappear without warning, control the climate and change shape. He was also considered a profit and a wise man. Do you know which famous witch we're talking about?

Merlin is a fixture in many of the most famous Arthurian legends. He first appears in Geoffrey of Monmouth’s History of the Kings of Britain (1136 CE) where he’s depicted as a precocious youth. He also appears in Sir Thomas Malory's Le Morte D'Arthur (1469 CE) and Merlin by Robert de Boron (12th century CE).

These photographs were taken by Julia Margaret Cameron in order to illustrate Alfred, Lord Tennyson’s recasting of the Arthurian legend. In the images, Merlin is portrayed by Henry Hay Cameron, the photographer’s husband.