A Spanish artist builds his own castle.

This massive fiberglass Gulliver turns every visitor into a Lilliputian.

This rough experimental house was created by flooding a dirt hill with concrete.

A towering monument in Spain has proven to be more labor-intensive than initially planned.

An eerie collection of the surviving structures from a past celebration of the future.

This architectural oddity is an oasis of green on the outskirts of Valencia.

This magnificent brick dome was made with an unusual design method.

The tallest tower in Cáceres's Old Town.

The camera-toting gargoyle juts out from the exterior of a Gothic cathedral.

Nicknamed the "Spirit of Paul Klee," this colorful apartment building features an array of multicolored panels.

A chunk of the "true cross" is held in this small Portuguese church where modern day exorcisms are said to be common place.

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

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

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

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

The verdant mossy ruins of a Franciscan monastery lie in the remote Sintra hills awaiting exploration.

Tucked away inside this concrete building is a church and its grand display of brutalist architecture.

This chapel is the site of a yearly pilgrimage that originated during the Middle Ages.

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

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

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

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

This architectural beauty is the home to a personal collection of more than 600 examples of mechanical musical instruments.

When this former hospital pharmacy closed in 2013 it already looked like a museum, so they turned it into one.