Fushimi Inari with its thousands of red torii gates is one of the most famous and picturesque spots in Kyoto. A major shrine in the Inari area, the first structures were built as early as 711 AD but relocated to it's current location about a hundred years after. Since it is an incredibly popular destination it's easy to get to, just a couple minute walk from Inari Station on the Nara line or Fushimi-Inari Station on the Keihan Main line. Since it's open 24 hours you can go whenever works for you which is convenient if you are trying to beat the crowds!
Find out more about Fushimi Inari Taisha.