怀古 | huái gǔ | to recall the past / to cherish the memory of past events / to reminisce / nostalgic | |
怀旧 | huái jiù | to feel nostalgic / nostalgia | |
恋念 | liàn niàn | to have a sentimental attachment to (a place) / to miss (one's ancestral home etc) / to be nostalgic about |