Get in line for Lisbon’s most famous sandwich.

Sip cherry liqueur at a bar dating back to 1840.

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

Tucked away inside this concrete building is a church and its grand display of brutalist architecture.

One man's remarkable private collection of art from around the world.

Portugal's National Pantheon has a history of curses, collapses and financial problems.

The best place in the world to buy tinned fish.

A garden in Lisbon filled with giant porcelain creatures.

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.”

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

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

This charming candle shop has been in business since 1789.

The world's oldest bookshop still in operation.

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

A dilapidated psychiatric facility on the outskirts of Milan where electroconvulsive therapy was developed and Napoleon once lived.

This entire town moved to a safe location after it was devastated by an earthquake, but the remains of the original town are still around.

A formerly opulent Italian village is now a crumbling ghost town that no one really knows what to do with.

A domed disco abandoned since the '70s now attracts artists and explorers under its unique roof.

On rare days, this abandoned castle's gatekeepers open its doors, revealing the eye-popping splendor hidden inside.

A small island less than half a mile from Venice is a forbidden island with a dark and twisted past.

Just across from the "Last Supper" painting is the famous painter's vineyard, a gift received for creating the masterpiece.

This palace offers an 18th-century European take on Chinese design and architecture.

The "floating factory" was a highlight in the career of the Italian architect known for his unusual use of reinforced concrete.