Jozsef Tari has been collecting miniature books since 1972, and is now the proud owner of over 4,500 literary works, including the world’s smallest book (2.9 x 3.2 mm).

In this Thursday, May 8, 2014 photo, Iranian coal miners push metal carts to be loaded with coal at a mine near the city of Zirab 212 kilometers (132 miles) northeast of the capital Tehran, on a mountain in Mazandaran province, Iran. International sanctions linked to the decade-long dispute over Iran's nuclear program have hindered the import of heavy machinery and modern technology in all sectors, and coal mining is no exception. (Photo by Ebrahim Noroozi/AP Photo)

In this October 7, 2014, photo, Fredrick Brower, center, helps cut up a bowhead whale caught by Inupiat subsistence hunters on a field near Barrow, Alaska. Drawing on tradition, and keeping within the closely monitored Aboriginal subsistence whaling guidelines, a bowhead whale is carved and divided by a crew armed with knives and hooks, and then shared according to custom. (Photo by Gregory Bull/AP Photo)

Baldwin Street, in Dunedin, New Zealand, is considered the world's steepest residential street. It is located in the residential suburb of North East Valley, 3.5 kilometres (2.2 mi) northeast of Dunedin's city centre.

A man carries away an injured girl while walking through debris past in the Achrafiyeh district in the centre of Lebanon's capital Beirut on August 4, 2020, following an explosion at the nearby port of Beirut. (Photo by The Mega Agency/Stringer)

In this February 22, 2021, file photo, climate activist Disha Ravi, 22, travels in a car as she is taken to a court in New Delhi, India. To her friends, Ravi, was most concerned about her future in a world where temperatures are rising. But her life changed last month as she became a household name in the country, dominating news coverage after police charged her with sedition, a colonial-era law which carries a sentence up to life. Her alleged crime: sharing an online document to help amplify months-long farmer protests in India on Twitter. She was released after 10 days in custody. (Photo by Dinesh Joshi/AP Photo/File)

A priest comforts one of the relatives of the victims, before a mass in their memory, as Lebanon marks one-year anniversary of Beirut port explosion, at the port in Beirut, Lebanon on August 4, 2021. United in grief and anger, families of the victims and other Lebanese came out into the streets of Beirut on Wednesday to demand accountability as banks, businesses and government offices shuttered to mark one year since the horrific explosion. (Photo by Aziz Taher/Reuters)