Sarajevo's location in a valley between mountains makes it a compact city.

Train stations were typically built in the late 1800's, to serve tiny, compact cities.

"It's a really compact city, so easy to move around," he says.

Boston is a compact city, sized right for walking or bicycling.

Where there had once been wilderness now stood a compact city some quarter of a mile in diameter.

Living in such a compact city has its benefits - you never know who you'll bump into.

Limited by its island site, Montreal is a compact city of flats and renters.

Oxford is a compact city, with most of the colleges and university buildings all within easy walking distance.

At the start of the 1950s Memphis was a compact city with boundaries were still limited compared to the sprawl seen today.

The best way to explore this compact city is by bicycle.