Brandon Y.
Yelp
Located between Yasaka Shrine and Kiyomizudera, Kodai-ji is a beautiful site, especially in the fall for autumn colors/koyo. During the third weekend of November, I went to Kodai-ji with some friends to see the light-up display, which was my first light-up for autumn colors.
I arrived at the site around 5pm, and was told to wait in a line, which took about 30 minutes to get to the ticketing area. What is interesting is that I beat the rush. Within 15 minutes, it started getting way packed, and by the time we left, the wait was about 2-3 hours!
The light-up, though, was well worth our 30 min wait and ¥600 entrance fee. The green, orange, and red colors that seem to glow in the night are a fantastic sight to behold, and it feels like you are in a magical land or theme park almost. Pictures don't do it justice (also because it is dark, so they get blurry without steady hands or a tripod). There is a route to take that goes through the Zen temples (there is a spot to take off your shoes), passes by a light-up parasol display, followed by a really cool pond that reflects the fall trees beautifully, a walk through the bamboo forest, and a dragon head statue.
Be sure to get tickets early (and have a camera with fast shutter speed!)