I jokingly use this picture from Futurama to poke fun about this article
about people who have lived in the 'Moscow Underground' but it is really a fascinating read. Growing up in Hawaii, I had dreams of spelunking
but as seeing as there was only water below, I went from hiking trails to exploring rooftops, abandoned warehouses, and construction zones. I still get a spine tingling sensation when exploring. Maybe I should apply to the travel channel or Discovery?