Lighthouse of the Week, October 23-30, 2016: Seoam South Breakwater Light, South Korea
OK, simply put -- this one looks like a baby bottle.
And apparently, it's supposed to, because this excerpt from The Lighthouse Directory says:
"2010. Active; focal plane 4 m (13 ft); red flash every 6 s. 4 m (13 ft) round concrete tower, shaped like a baby's bottle."