Journeys In Halachah, written by Harav Levi Yitzchok Raskin, Dayan of the Lubavitch Community in London, analyzes interesting halachic dilemmas.
The book is based on articles which first appeared in the Jewish Tribune, the weekly paper of Agudas Yisroel in the UK. Each one discusses halachic queries in unique situations, such as spending Shabbos on a campsite, observing halachic times in Iceland, and retrieving a hat which landed under a car on Shabbos.
Journeys in Halachah is now for sale in Crown Heights Judaica stores.