Discover Cave of the Seven Palaces in Almuñécar, Spain: Despite its grandiose name, this enigmatic first-century void under the town is no cave, and it’s possibly not a palace either.
— Read on www.atlasobscura.com/places/cave-of-the-seven-palaces
Discover 72 hidden attractions, cool sights, and unusual things to do in Portugal from Quinta da Regaleira to Calouste Gulbenkian Museum.
— Read on www.atlasobscura.com/things-to-do/portugal
Portugal
One of the most cherished science fiction scenarios is using a black hole as a portal to another dimension or time or universe. That fantasy may be closer to reality than previously imagined.
— Read on curiosity.com/topics/you-might-be-able-to-travel-through-some-black-holes-without-dying-curiosity
Talk about entering the great unknown. JohnBarleycorn
John Barleycorn 