Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

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

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

Perhaps the most spectacular grotto along the Algarve coastline.

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

The world's largest wooden structure.

Single runway interrupted by a busy road that cuts across its middle.

This panoramic lift provides a futuristic ride up San Pedro Mountain.

The oldest Roman lighthouse still in use.

These artifacts were discovered during the construction of the airport, with some dating back to the Neolithic period.

This legendary city has been a tourist attraction for centuries.

One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

This narrow fjord-like bay is the largest ria in the Mediterranean Sea.

A beautiful mountaintop mausoleum devoted to a Montenegrin icon can't seem to make everyone happy.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

The ruins of an abandoned medieval city where the last Byzantine emperor was crowned.

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.

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.

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

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

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