A fortress off the West coast of Portugal that dates back to 1502.

In Portugal, a secluded stretch of untouched natural beauty hides at the bottom of a steep hill.

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.

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

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

This once-forgotten oasis in the middle of Lisbon was first created over a century ago quite by accident.

Portugal's National Pantheon has a history of curses, collapses and financial problems.

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

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

The world's oldest bookshop still in operation.

This little-known national museum houses over 40,000 works of art from across the world.

Located in the thermoelectric factory that once powered the entire city, this Portuguese museum is shockingly fascinating.

An exquisite collection of fairytale conveyances that puts most car museums to shame.

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

A unique seaside cave where Aleister Crowley faked his own death.