The medieval castle built as headquarters for the Pope's secretive Knights Templar.

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

The best place in the world to buy tinned fish.

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

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

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

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

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

Oddly enough, a pair of Wolfs funded the construction of this Little Red Riding Hood sculpture.

These formal gardens were designed to be admired from the vantage point of the castle.

This waterfall is one of the most spectacular natural features in the Scottish Lowlands.

An ordinary lamppost situated in the middle of Cambridge has an unusual moniker and history.

Attached to this castle is a local church.

The 18th-century inspiration behind Harry Potter's Sorting Hat.

The elaborate clockwork contraptions in this Scottish gallery create small worlds of whimsy and horror.

A brother statue swap has adorned this building's facade for centuries.

A 19th-century Neoclassical building now housing a Hindu temple represents modern-day Glasgow at its most multicultural.

The site of the first international football match.

This small memorial honors a ferocious feline and local hero.

This monument dedicated to the legendary American showman can be found in Scotland's largest city.

An enormous steel waterfall is a nod to the substance that shaped Britain's Steel City.

In a small courtyard resides this large mural that draws inspiration from Leeds and its history.