The old provincial hall, now the Museum of Nonthaburi
Nonthaburi is actually a province immediately to the north of Bangkok, but such is the size of Bangkok that it's hard to tell where Bangkok ends and Nonthaburi starts, so I include Nonthaburi as a subset of the Bangkok guide. The most popular sight in Nonthaburi is probably the island of Koh Kred, where people still practice the ancient art of making clay pots. Other sights include an ancient temple fortress and a charming old provincial hall.