Perhaps the most spectacular grotto along the Algarve coastline.

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

The stunning interior of this Gothic church is covered in ornate gold details.

Ancient catacombs form the foundation for this Rococo orgy of a church.

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

Gustave Eiffel's masterpiece until the Eiffel Tower was built.

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.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

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

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

One Portuguese poet described this cape, the westernmost point in mainland Europe, as "where the land ends and the sea begins."

Get in line for Lisbon’s most famous sandwich.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

One man's remarkable private collection of art from around the world.

In the Monastery of São Vicente resides a gallery devoted to a breathtaking collection of seashells.

Hidden beneath a beautiful overlook you’ll find the history of the city depicted in comic strip format next to a pay toilet.

The world's oldest bookshop still in operation.

The scorched Lisbon church that survived two earthquakes and a massive fire.

Sip cherry liqueur at a bar dating back to 1840.

A $600,000 pile of stainless steel balls makes for some rather divisive public art.

This hauntingly stark structure is a relic of an industrial past.