Iron Age runes and ruins hide in plain sight along this Portuguese beach.

A small Portuguese cottage formed between boulders in the countryside.

A hidden three-foot-wide house separates these two regal churches.

A scientific observatory managed the largest Portuguese astronomy research unit.

The history of drinking is told through 1,800 cups, chalices, and glasses at this exhibit.

These rock drawings in the Côa Valley also create an ancient optical illusion.

For more than two centuries, the canopy of this venerable tree has been a haven for songbirds and lovers.

The walls of this small village have been turned into a living street art gallery.

Eat the ultimate iteration of Portugal's most beloved pastry.

Sip cherry liqueur at a bar dating back to 1840.

This glass skywalk offers vertiginous views down the volcanic cliffs to the beach below.

Rainwater transformed this old quarry into a peaceful pond you won't find in most tourist books.

Portugal’s highest lighthouse has one of the most impressive focal planes in the world.

This castle has links to Portugal’s founding and struggles for independence.

This museum contains a vast array of puppets and marionettes from all over the world, featuring incredible works by Portuguese creators.

A windswept necropolis carved into the rocks overlooks the "most Portuguese town in Portugal."

At night, bats patrol this magnificent 18th-century space in search of book-eating pests.

Elaborate tile work in this railway station tells the story of Portugal.

A unique seaside cave where Aleister Crowley faked his own death.

A psychedelic labyrinth on the San Francisco bay.

A small sanctuary carved into the mountainside near the tallest point in continental Portugal.

Perhaps the most spectacular grotto along the Algarve coastline.

On a trail in Portugal's Barão de São João National Forest, a pile of faces look up at hikers from the forest floor.

After the owner of this Art Nouveau home died, it was turned into a museum displaying a lifetime dedicated to art.