Monks in the empyreal Alazani River valley have preserved their 1,000-year-old winemaking tradition.

This architecturally eclectic fortress witnessed centuries of bloody turmoil, including the massacre of its ruling clan.

A cylinder monument with a spectacular vista commemorates a friendship that some say never existed.

A cluster of historic bathhouses built on the famed hot springs that gave the Georgian capital its name.

Take respite inside this jaw-dropping church while climbing the volcano where Georgia's Prometheus was once chained.

The charmingly disheveled clock tower of Tbilisi's puppet theater.

A unique military outpost carved into a rocky outcrop in the English Channel.

In France, a medieval-style home pays homage to an intrepid explorer who discovered Québec.

A fortified palace in the shape of a ship on the Thiou river.

This mosque was based on Sub-Saharan Islamic architecture and created for the Senegalese Tirailleurs.

A fortress on this island housed the mysterious prisoner known as the "Man in the Iron Mask" for more than a decade.

This remarkable checkered church on a Corsican hilltop is fabled to have been built by angels.

The ruins stand as a somber reminder of France’s worst civil catastrophe of the 20th century.

Peeing dogs guard the Roman hunting goddess atop a fountain at France’s Château de Fontainebleau.

If you look closely at the oldest bridge in Paris, you might notice hundreds of ugly faces leering from its sides.

A beautiful lighthouse with as many steps as days in the year, as many windows as weeks, and as many levels as months.

Thousands of flamingos and other bird species flourish in these Camargue wetlands.

The haunting concrete remains of a Nazi pebble crusher can still be found in this small French commune.

Trek up this glacier before it disappears.

On this romantic tidal island reachable only at low tide the tomb of a famous French writer overlooks the sea.

Longest canal tunnel in the world, abandoned in the 1960s.

The remains of this castle, known as the Witch’s Eye, watch over the Thur Valley.

Tens of thousands of ancient rock carvings hidden in the heart of a French national park.

A small house sits between two huge rocks, with its back to the sea.