#1 "The Maumbry Rings":

This Roman amphitheater is the setting for the secret first reunion between Henchard and Susan: "a huge circular enclosure, with a notch at opposite extremities of its diameter north and south." It is located inside the town limits, not far from the train station. (Ch. XI)

#2 & 3 "Two views of Grey's Bridge":

Here Henchard comes to meditate in his melancholy: "The miserables who would pause on the remoter bridge ... included bankrupts, hypochondriacs, persons who were what is called 'out of a situation' from fault or lucklessness...." (Ch. XXXII)