Adventure films, unlike action films, often use their action scenes preferably to display and explore exotic locations in an energetic way. The subgenres of adventure films include, swashbuckler film, disaster films, and historical dramas – which is similar to the epic film genre. Main plot elements include quests for lost continents, a jungle, mountain, island, urban and/or desert settings, characters going on treasure hunts and heroic journeys for the unknown. Adventure films are mostly set in a period background and may include adapted stories of historical or fictional adventure heroes within the historical context. Kings, battles, rebellion or piracy are commonly seen in adventure films. Adventure films may also be combined with other movie genres such as, science fiction, fantasy and sometimes war films.