Dennis Lakomy has been collecting and running model trains since his dad gave him his first model train set in 1962.

HO and N scales are popular choices among compact layouts. HO scale trains, which are about half the size of traditional O scale trains, allow for realistic details while conserving space.

If you're looking at model trains ... HO scale is better for smaller spaces, while O scale is a larger commitment and requires more space. Many veteran hobbyists suggest a 4'x8' central layout ...