An early work of the architect Álvaro Siza Vieira, these swimming pools blend into the beach.

A garden in Lisbon filled with giant porcelain creatures.

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

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

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.

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

A submerged village appears when dam levels drop.

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

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

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

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

This charming candle shop has been in business since 1789.

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

The world's oldest bookshop still in operation.

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

Ring the bell to enter a bar that looks equal parts museum and old curiosity shop.

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

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

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

A sweet museum focused on beets.

The abandoned remains of this Victorian brewery hide crumbling bowling alleys and rusting industrial gear.

This spectrum of a star was observed by one of the world's most accurate spectrographs. 

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.