Legend has it the lovelorn tears of a princess and a shepherd boy formed the blue and green twin lakes in the Azores archipelago.

This tower once served as a radar station during the Cold War.

Explore a remarkable 35-hectare sculpture garden located an hour outside of Lisbon.

An architectural gem nestled into a promontory overlooking a prehistoric landscape.

These narrow stone granaries have been used to store and dry out grain for hundreds of years.

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

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

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

Built by a king and rebuilt by an emperor, this aqueduct transported water for 1,200 years to this ancient Mediterranean hub.

A "miracle" that seems to produce more holy fistfights than holy revelations.

These numerous Israeli caves were dug out over hundreds years for reasons ranging from hideouts to burial sites.

Hidden beneath a beautiful overlook you’ll find the history of the city depicted in comic strip format next to a pay toilet.

This now abandoned restaurant provides some of the most amazing views of Lisboa.

In addition to showing films, this one-screen arthouse cinema from the late 1940s is a museum of old film equipment.

A garden in Lisbon filled with giant porcelain creatures.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

A German apartment building hosting as many trees as human occupants.

The most visited, and possibly most controversial, museum in Germany.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

The entrance to this Frankfurt subway station looks like an old tram car crashed into the concrete sidewalk.

The last Tsar of Russia constructed this private church just so he could attend services when visiting his wife's hometown.

This conical hill was built as a testing ground for an engineer known as the Glider King.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.