These crevices cut into the mountains collect the island’s main source of precious freshwater.

You can soak in three relaxing pools filled daily by the tide.

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

A lush oasis full of vibrant plants and striking geometric displays.

Men in rubber-soled boots serve as your "brakes" on this toboggan ride Hemingway described as "exhilarating."

The mysterious remains of a martyred teenage saint are venerated inside a small country chapel.

An old wool-washing house filled with Fluxus contemporary art.

The largest medieval water tank on the Iberian Peninsula is preserved beneath the Cáceres Museum.

Fragments of human bones are embedded in the walls of this quaint alley.

Images of neighbors past and present guard the streets of this charming alpine village.

An accidental trick of light casts the perfect shadow of a pilgrim of the Camino de Santiago against the cathedral wall.

This enormous censer uses a pulley system installed over 400 years ago.

The "Little Ones," show Portugal in full miniature splendor.

An ancient tomb that still stands in Portugal.

One of the few places in Portugal where the Celtic ritual of wearing large wooden masks is still practiced.

A submerged village appears when dam levels drop.

A stunning 18th-century site where pilgrims ascend by a series of punishing stairs only to return via funicular.

This giant sculpture made of trash is a critique of society's wastefulness.

An honorary saint of the people, Maria Adelaide became an incorrupt corpse, the clothes intact, exhaling “a strong scent of roses.”

This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

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

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

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