One of my more innocuous hobbies is taking photos, particularly of buildings. (They are much easier to take pictures of than people, because they never complain and rarely move when you take their picture). Here are few of mine, from four continents:
Union Terminal, Cincinnati, Ohio
Her Majesty's Theatre, London, England
The Opera House, Sydney, NSW, Australia
Sung Dynasty Village, with a modern apartment building behind it, taken in Hong Kong in 1996, long before I had a digital camera
Anyone else take interesting pictures of buildings?