Impressive mining ruins overlook a spectacular view of Ireland's Copper Coast.

This centuries-old gothic monster has been converted into a sprawling, glossy bookstore.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

The secret medieval communication system will whisk your words above the noise of the crowd.

This tri-part waterfall is a little bit of fairytale beauty in the heart of Luxembourg's Little Switzerland.

A towering monument in Spain has proven to be more labor-intensive than initially planned.

The stunning interior of this Gothic church is covered in ornate gold details.

This giant power line tower is a robot that can express its moods in neon.

A beautiful young girl said to have been buried alive in her coffin…

Buenos Aires' city of the dead contains some very famous remains, including Eva Perón.

This historic, palatial theater is now one of the world’s most beautiful bookstores.

A bright little alley in La Boca is a part of tango history.

A tower devoted to — and modeled after — the Divine Comedy.

105-foot wide giant metallic flower blooms anew every day in the heart of Buenos Aires.

Bible stories are brought to life with gloriously cartoonish kitsch in this South American theme park.

A small but industrious mining operation that allows visitors to touch precious gems while they are still in the rock.

Two stone columns flank the grand Venice square, but there were supposed to be three.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.

Visitors dating back to the 1600s carved their marks in the stones of the iconic tower.

One of downtown Berlin's last reminders of its Communist past.

A neighborhood church's unusual abstract stained glass was the final project of avant-garde artist Jean Cocteau.

The 16th-century church has the only stained glass windows that survived the Scottish Reformation intact.

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

A tribute to the Polish insurgents who fought in the failed attempt to end their city's Nazi occupation.