Castro de Santa Trega is a famous fortress in the Galicia region of northwestern Spain. The original site dates to Roman times, and occupies a strategic position on the mountain bearing the same name. It was occupied for roughly two hundred years, between 100 BC and 100 AD. The site is also home to some rock-carving which may pre-date the fortress by thousand of years. Contributor Diego_Al_Al used a DJI Mavic Pro drone to create this aerial video of the fort, one of Galicia's most popular tourist spots.