Seoul's Temples and Palaces

We forgot to bring the lonely planet, so aren't going to put the names of them in here (because we will def get them wrong, and potentially offend anyone who is the wiser). But, we went to a beautiful Temple in ____, called _____. And did a afternoon meditation session and heard a Dharma talk about identity. A short version goes something like "If I ask you where the cow is and who you are..... you are sitting on top of the cow....are you the cow?....you must acknowledge the cow.... and bring the cow to me".

It was interesting, but both of left more confused than converted.

Buddhism here is obviously important, and central to South Korea, but it seems like Christianity is taking it's place. Giant red crosses and churches are everywhere, it's kinda daunting.
We went to a couple of Palaces around the place, saw stunning architecture, paintings and landscaping. Seoul has many Palaces and Temples, but many were also destroyed by the Japanese during their occupation of Korea. Some of the active ones we've visited have been restored to their previous glory.