A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

Step back in time at this 19th-century kiosk.

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

The best place in the world to buy tinned fish.

The devil-defying mark left by a saint as a boy is visible inside Lisbon's cathedral.

The world's oldest bookshop still in operation.

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

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

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

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

Building owners can take out tiles for free at this repository for historic building materials.

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

This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

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

A 600-year-old mini shrine guarded by a sword-wielding knight hides in a crumbling cliff face.

Once thought to be the mysterious work of a witchy prophetess, a well with unusual properties turns objects into "stone".

A battle between nature and architecture in the Cambodian jungle.

A secluded, little-known temple hidden amid the dense jungle.

Though it was originally dedicated to the Hindu god Shiva, Baphuon was converted to a Buddhist temple in the 15th century, complete with a massive hidden statue.

Khmer Rouge's high security prison.

5,000 skulls in memorial to those killed by the Khmer Rouge.

A memorial to the monk who set himself on fire to protest the persecution of Buddhists in Vietnam.

A nightmare for the claustrophobic lies hidden in Southeast Asia.

Meant to be a lavish presidential home, the palace became a symbol of the fall of South Vietnam.