Micro pigs have become so popular in England that they are almost impossible to get hold of. They are going for as much as $1,1000 apiece. (Photo by Geoff Robinson)

Bam Bam makes a fan feel his sweaty chest at Johnson' s Station in Picayune, Ms., on February 11, 2018. The Micro Wrestling Federation is a full scale, WWE type event sporting an entire cast under five feet tall. Founded in 2000, the MWF is the longest running organization within the Little Person wrestling industry according to its manager. (Photo by Emily Kask/AFP Photo)

Macro or Micro? Scientists’ pictures baffle our sense of scale. It began when Stephen Young, a geography professor at Salem State University in Massachusetts, tricked his biologist colleague Paul Kelly into thinking a satellite image was one of his electron microscope scans. Can you guess whether they are close-up or very far away? (Photo by Paul Kelly)

A baby Jack Russell and Chihuahua mix has defied the odds by surviving despite its tiny size and being abandoned by its mother. The owners of named the puppy “Miracle” and have taken over the feeding and care of the baby after its four siblings passed away shortly after being born. Owner Kayley-May Coles, age 10, said, “Everyone thinks she is absolutely beautiful. My friends absolutely love her. My teacher thought she might be the smallest dog ever to be born. She is just perfect”.

Kha Tu Ngoc rests in her two- square- meter house in Ho Chi Minh City on May 2, 2018. The “micro- house” dwellings are dotted throughout Vietnam' s bustling southern hub, occupied by families clinging to postage stamp- sized plots a city developing at breakneck pace. Tucked away in winding alleys, nestled under new condo developments or sandwiched between street food stalls and shops, the tiny houses are easily missed by the unattentive passerby. (Photo by Thanh Nguyen/AFP Photo)

Visitors to Kensington Gardens are reflected in Anish Kapoor's sculpture “C-Curve 2007” on September 27, 2010 in London, England. (Photo by Peter Macdiarmid/Getty Images)

Wounded Reuters photographer Gleb Garanich, who was injured by riot police, takes pictures as riot police block protesters during a scuffle at a demonstration in support of EU integration at Independence Square in Kiev November 30, 2013. Riot police in the Ukrainian capital Kiev used batons and stun grenades to disperse hundreds of pro-Europe protesters from the city's main Independence Square early on Saturday, witnesses said. (Photo by Reuters/Stringer)