Here is a list of monorails in Japan.
Okinawa Urban Monorail at Prefectural Office Station
Tokyo Monorail across Shibaura
Kitakyushu Monorail
Toei Ueno Zoo Monorail in Tokyo
A monorail is a railway in which the track consists of a single rail or a beam. Colloquially, the term "monorail" is often used to describe any form of elevated rail or people mover. More accurately, the term refers to the style of track. Monorail systems are most frequently implemented in large cities, airports, and theme parks.
Chongqing Rail Transit has the longest and busiest monorail system in the world, with Line 3 being the longest and busiest single monorail line.
São Paulo Metro Line 15, is the longest and busiest monorail line in the Americas, and second worldwide.
Monorail on concrete columns in Chongqing, China
Gyroscopically balanced monorail (1909) by Brennan and Scherl