After the owner of this Art Nouveau home died, it was turned into a museum displaying a lifetime dedicated to art.

Little-known artist couple chose a former silk factory as the location for a museum dedicated to their work and other avant-garde art.

A garden in Lisbon filled with giant porcelain creatures.

In Portugal, a secluded stretch of untouched natural beauty hides at the bottom of a steep hill.

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

A 15-foot-tall statue of the head of the Sopranos family greets passengers at a train station in southeastern Lithuania.

There was a top secret plan during World War II to seal a group of soldiers inside the rock.

For more than two centuries, the canopy of this venerable tree has been a haven for songbirds and lovers.

One Portuguese poet described this cape, the westernmost point in mainland Europe, as "where the land ends and the sea begins."

This enigmatic Roman tower lurks just outside Belmonte.

A fortress off the West coast of Portugal that dates back to 1502.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

A miraculous three-handed portrait of a saint can be found inside this church.

An abandoned masterpiece of Soviet Brutalist architecture.

The best-preserved ancient theater in the world.

Ancient serpentine sacrifice holder that has stood the test of time.

The alleged house of the Virgin Mary is tucked away in a park and nature preserve on Mt. Koressos in Turkey and is holy to both Catholics and Muslims alike.

A charming beach town in Turkey captures all the colors of the rainbow.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

Roman ruins top white travertine terraces formed by ancient hot springs.

From neon green watering holes to bleached elephant foetuses, this Mozambique museum makes natural history weird.

This grisly effigy displays an early Christian martyr who was skinned alive and beheaded.

A lush indoor jungle fills this bustling Madrid transportation hub.