Roman politician Herodes Atticus built this nymphaeum to honor his wife, whom he may have murdered.

This ancient market is often referred to as the oldest shopping mall in the world.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

This Roman arch marks the location of an ancient gate at one of the Seven Hills of Rome.

The engineering wonder and pleasure dome of a much-maligned emperor still holds undiscovered secrets.

2300-year-old Roman road connecting the empire.

The yawning maw of this pagan visage is said to bite off the hands of liars.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

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

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

A small sanctuary carved into the mountainside near the tallest point in continental Portugal.

An icon of the city, this chapel features an amazing dome ceiling and offers panoramic views.

These narrow stone granaries have been used to store and dry out grain for hundreds of years.

This enigmatic Roman tower lurks just outside Belmonte.

This impressive rupestrian engraving dates back to the Upper Palaeolithic period.

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

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

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

Come for the bread-themed puppet show, stay for the buffet.

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

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

This castle has links to Portugal’s founding and struggles for independence.

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

A micronation on an islet along the coast of a Portuguese island.