Seaside ruins of a settlement that date back to the first century B.C.

Marvel at this immense work of art that greets arrivals to the city.

Giant topiary dog once played a role in a terrorist bomb plot.

Two towns are linked by an engineering marvel masquerading as a boring suspension bridge.

Hundreds of stone stairs and a winding medieval bridge connect this haunting Spanish island to the mainland.

The oldest operating roller coaster of its kind, the Montaña Suiza has been thrilling riders since 1928.

These 400-year-old ruins are all that's left of the monastery where Ines de Castro was assassinated by the King of Portugal.

This historic streetcar system has been running since the 19th-century.

This unique architectural wonder is also tied to one of the 20th-century's most renowned writers.

Sip cherry liqueur at a bar dating back to 1840.

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

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

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

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

One of the smallest bookstores on the planet.

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

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

Perhaps the most spectacular grotto along the Algarve coastline.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

This small chapel is built of human bones and decorated with a golden skeleton.

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

This charming candle shop has been in business since 1789.

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

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.