The verdant mossy ruins of a Franciscan monastery lie in the remote Sintra hills awaiting exploration.

This now abandoned restaurant provides some of the most amazing views of Lisboa.

A scientific observatory managed the largest Portuguese astronomy research unit.

Legend has it the lovelorn tears of a princess and a shepherd boy formed the blue and green twin lakes in the Azores archipelago.

This museum documents the ancient practice of salt production in Figueira da Foz.

The ruins of a 16th-century bridge loom over Olivença's sovereignty.

One of few vertical lava tubes in the world accessible by foot.

This tower once served as a radar station during the Cold War.

Nicknamed "Karri Knight," this Eucalyptus was planted in 1895 and stands at 72 meters.

Bits of flat terrain surrounded by cliffs make one of the most beautiful landscapes in the Azores.

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

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

In addition to showing films, this one-screen arthouse cinema from the late 1940s is a museum of old film equipment.

A deer-headed statue that brings together a 12th-century legend and big wave surfing.

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

An unassuming music museum recounts the rags to riches story of a dramatic Portuguese genre.

These small, triangular, colorful houses are a staple of Madeira Island.

As the highest point in the Mid-Atlantic range this stratovolcano offers spectacular views.

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.

The medieval town's star-shaped walls are geometrically dazzling, though not entirely impenetrable.

An abandoned tuberculosis hospital said to be haunted by the patients who died within its walls.

The extravagance of Portugal’s "Pink Palace" resulted in a noble title being awarded to its owner.