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.

One of the smallest bookstores on the planet.

The scorched Lisbon church that survived two earthquakes and a massive fire.

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

Rabanadas, the Portuguese answer to French toast, are reborn here with a glassy sugar crust and a center as light as whipped cream.

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

Sample some of Iberia’s best tinned fish at this century-old cannery just north of Porto.

This historic streetcar system has been running since the 19th-century.

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

Unconventional site where the tracks of Zurich tramcars intersect.

Featuring a meatless buffet fit for kings, this family-owned Zurich eatery is considered the oldest vegetarian restaurant in the West.

Switzerland's oldest public observatory is an important part of the Zurich cityscape.

The stone walls of a home built to withstand a California wildfire still stand after more than a century.

A notoriously corrupt Chief of Police's deteriorating Greek-themed playhouse.

This statue of the great Argentinian car driver is located near a famous curve of the Monaco Grand Prix.

This public amphitheater was once a key part of Monaco’s defense strategy.

Created as a "model concentration camp" to hide Nazi atrocities from the international community, this former camp-ghetto now holds a museum and memorial honoring the lives lost within.

At 929 pounds and 26 feet tall, this stainless steel fork can only be used by the likes of King Kong.

This statue pays tribute to the iconic musician in the place where he recorded his final studio album.

A permanent exhibition honors Queen, which recorded seven albums at the casino-based studio, including “Under Pressure” with David Bowie.

A dismembered holy head stares out from her beautiful reliquary at the St. Dominic Basilica.

First founded in 1472, this is the oldest bank in the world. Its history may explain why we call financial institutions "banks."

This real life asylum of horrors is now an abandoned ruin that hides the unbreakable code to one patient's insanity.