This Nigerian nature reserve is home to the longest canopy walkway in Africa.

An abandoned train station in Munich constructed for the 1972 Olympic games.

Some of the greatest minds in the history of Hungarian art and science converged in this café.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

In Kazakhstan, a colorful cathedral with many lives once survived the most powerful earthquake in the region.

This Soviet-era athletic and recreation facility is the highest ice skating rink in the world.

This Soviet statue is based on a piece of propaganda that's been elevated to national myth.

This sprawling market is a one-stop shop for traditional Kazakh foods, from mare’s milk to sheep’s head.

At 72 feet below sea level, it's the lowest commercial airport in the world.

The whiskey producer's archives includes a historical list of infractions committed by and associated penalties exacted upon employees.

The ruins of a medieval monastery named after a type of tree.

A proud bronze billy stands as an eternal symbol of Ireland's oldest festival, where a goat is made king.

A stunning Victorian abbey and walled garden on a lakefront.

These imposing walls and towers look more like the ruins of a fortress than a monastery.

Just a few miles off the western coast of Ireland lies an isle steeped in Irish literary history.

The ruins of an 800-year-old monastery boasts the tallest round tower in Ireland.

This single room has survived the centuries with almost no deterioration.

This ancient Irish religious site is covered in ancient carvings, many of which have barely aged.

This Irish show cave is said to have been the site of a Viking massacre that claimed 1,000 lives.

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

This stunning concert hall has become a symbol of Iceland's national recovery.

The largest whale museum in Europe allows visitors to walk among life-size giants.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.