A hidden three-foot-wide house separates these two regal churches.

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

The original version of Porto's most famous sandwich is just as good here as it was a century ago.

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

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

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

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.

Eat the ultimate iteration of Portugal's most beloved pastry.

Sip cherry liqueur at a bar dating back to 1840.

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

This charming candle shop has been in business since 1789.

The world's oldest bookshop still in operation.

An unassuming music museum recounts the rags to riches story of a dramatic Portuguese genre.

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

The best place in the world to buy tinned fish.

One of the smallest bookstores on the planet.

Catering to broken dolls for almost 200 years, this repair shop is now a charnel house of doll parts.

It's said this geological anomaly was caused when the Devil took a bite out of the Irish mountainside.

This modest plaza in Moneygall, Ireland has cashed in on its distant connection to the U.S. president.

A 1930s-style speakeasy with a secret doorway and one-of-a-kind cocktails.

Experience what life was like in Ireland during the Viking and medieval ages.

The enchanting archway is the only surviving portal into Dublin’s lost medieval wall.

Honoring the Guinness brewer whose quest for the perfect pint led to the creation of the t-test, a cornerstone of modern statistics.