The secretive indri (Indri indri) of Madagascar, the largest living lemur. It is also critically endangered and highly evolutionarily distinct with no close relatives, which makes its branch one of most precarious on the mammal evolutionary tree. In the likely event that the indri goes extinct, we will lose 19m years of unique evolutionary history from the mammal tree of life. (Photo by Pierre-Yves Babelon/Aarhus University)

A visitor jumps for a photograph on the world's highest and longest glass-bottomed bridge above a valley in Zhangjiajie in China's Hunan Province on August 21, 2016. The bridge, which opened to the public on a trial basis on Saturday, spans 430 meters (1,410 feet) and rises about 300 meters (984 feet) above a valley in a scenic zone, making it the world's highest and longest glass-bottomed bridge according to Chinese state media. (Photo by Fred Dufour/AFP Photo)

A firefighter holds a red panda (Ailurus fulgens) from its tail while removing it from a tree at a residential area in Kunming, Yunnan province, July 3, 2014. The animal was spotted in the residential area and was brought down from the tree after residents reported its sighting to the police, local media reported. (Photo by Reuters/Stringer)

바버렛츠 (The Barberettes) – Barbara Ann (Cover of The Beach Boys). The Barberettes is a South Korean retro, doo-wop female group that debuted in 2014 as a trio, and is based in Seoul.

チャラン・ポ・ランタン (Charan-Po Rantan) – フランスかぶれ （ちょっとだけショートヴァージョン）

Foghorn Stringband – Reuben's Train. Foghorn Stringband is an old-time string band from Portland, Oregon, United States. They are considered one of the finest old-time string bands on the West Coast.

These tiny worlds created in a tiny glass bottle, literally, are the work of Akinobu Izumi. Akinobu uses paper, clay, wax and resin among other materials to create these intricate miniature worlds.