alt = A statue of young Lincoln sitting on a stump, holding a book open on his lap

alt = Head shot of older, clean shaven Lincoln

alt = A dark-haired, bearded, middle-aged man holding documents is seated among seven other men.

alt = Photo of surf breaking on rocky shore

alt = Map displaying a looping line with arrows indicating that water flows eastward in the far Southern ocean, angling north east of Australia, turning sough after passing Alaska, then crossing the mid-Pacific to flow north of Australia, continuing west below Africa, then turning northwest until reaching eastern Canada, then angling east to southern Europe, then finally turning south just below Greenland and flowing down the Americas ' eastern coast, and resuming its flow eastward to complete the circle

alt = Map showing 5 circles.

alt = Map of Caribbean showing seven approximately parallel westward-pointing arrows that extend from east of the Virgin Islands to Cuba.

alt = Animation showing the continents separating from a single mass, making creating the Atlantic in the process

alt = Animation of audio, AM and FM sine waves

alt = Apollo program insignia

alt = President John F. Kennedy addresses a joint session of Congress, with Vice President Lyndon B. Johnson and House Speaker Sam Rayburn seated behind him

alt = Black-and-white photograph of a statue consisting of an inscribed, round pedestal on top of which sits a seated, nude, male figure of which only the legs and lower torso are preserved

alt = Tapestry image of a man on horseback holding a falcon

alt = Tapestry image of a procession of men carrying a coffin heading towards a church building.

alt = Coin image of a crowned male head with a sceptre in the background

Image: AcropolisatathensSitePlan. png | right | 600px | alt = Site plan of the Acropolis at Athens

alt = Diagram showing video signal amplitude against time.

alt = This article incorporates public domain material Bulgaria country profile ( October 2006 ) from websites or documents of the Library of Congress Federal Research Division.

alt = Black-and-white picture of heavy machinery with two operators sitting aside

alt = Graphs showing similar elution curves ( metal amount vs drops ) for ( top vs bottom ) terbium vs berkelium, gadolinium vs curium, europium vs americium

alt = Sequential layers of spheres arranged from top to bottom: GRGBGRGB ( G = green, R = red, B = blue )

alt = A man in an ornate naval uniform with long grey hair stands on a ship's quarterdeck.

alt = A short skirted women stands assertively behind a sitting man in front of a large machine

alt = Boy with shoulder-length black hair stands in a martial pose

alt = Pope Urban II stands in the center image, far back in the church at the Council of Clermont.

alt = A train consisting of a locomotive and single carriage stands in the centre track of three tracks, which is on a ledge on a steep hillside.

alt = A small steam locomotive stands beside a banked area.

alt = A small green tank steam locomotive of unusual design, number 13, stands in the museum.

alt = A man wearing a white baseball uniform with " Rays " written across the chest in green and a black cap stands on a baseball field

alt = A man wearing gray baseball pants, a red jersey with " D-Backs " written across the chest in black letters, and a red cap with a black " D " on it stands on a baseball field

alt = A man wearing a white baseball uniform with a navy blue " D " on the chest, a navy blue cap bearing a white " D ", and a baseball glove stands on a baseball field

alt = A man wearing a gray baseball uniform with the name " Sanchez " and the number " 12 " on the back, a black cap bearing, and a baseball glove stands on a baseball field

alt = A beige heron with yellow legs and bill stands hunched, its neck hidden in the feathers of the body, on a wire mesh above water.

alt = A brown heron with brown, back and beige coloured streaks stands in similarly coloured dead grasses, its head pointed upwards

alt = A decaying Tuscan villa stands against a clear-sky.

alt = A metallic ball stands in a futuristic corridor, with sparks of electricity in the background.

alt = A man in a white uniform stands in front of a microphone on the steps of a building, surrounded by men in an array of uniforms.

alt = A middle-aged man stands to wear a white long-sleeved shirt and white trousers, while he has sunglasses resting on a cap that is on his head.

alt = A soldier wearing a slouch hat stands in a trench on the side of a hill, while other soldiers move in the background amidst the trees.

alt = Five Asian soldiers sitting on a hillside with their hands behind their heads, while above them stands a group of Caucasian soldiers wearing slouch hats

alt = Walter Burley Griffin stands next to his wife ( left to right ) in a grass paddock.

alt = A man stands in a full hockey uniform.

alt = A man in wearing a leather helmet with goggles on his head stands hands on hips in front of an a twin-propeller aircraft.

While these features are not exclusive to alt porn sites, their inclusion stands in stark contrast to the standard operating procedures adopted by more typical porn sites, which tend to feature more or less anonymous models who are viewed by anonymous visitors.

alt = A soldier wearing a slouch hat stands in a trench on the side of a hill, while other soldiers move in the background amidst the trees.