Hidden in this modern shopping center is a relic of 16th-century capital punishment.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

Where lovers tie birch branches into long-lived knots.

The highest point in Iowa, while not that impressive to mountain states, has earned its own monuments.

Fantastic stainless steel dragon gates complete with mesh wings.

Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

Mortarless walls that stretch for miles are a lovely solution for creating grazing land in the harsh terrain of the Aran Islands.

Modern sundial uses ancient methods to tell time and date perfectly.

The modern birthplace of Irish freedom.

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

While only two of the ancient buildings at this site are actually churches this was one of the earliest Irish pilgrimage sites ever.

An Iron Age fort on the edge of a seaside cliff offers a glimpse into an ancient, mystical world.

A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

An antique Beechcraft airplane serves as a giant windsock for people driving through the blustery open country of eastern Wyoming.

This shallow pit was once used to send over 20,000 buffalo plummeting to their death.

This cannonball embedded in the side of an Edinburgh house once served a surprisingly pedestrian purpose.

The world of the ancient Celtic civilization explained through a bewitching 11 acre garden.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

This supermarket offers shoppers a window into the past alongside their groceries.

France's most famous cemetery, with some of its most curious tombs.

Scotland is filled with standing stones that date back hundreds or thousands of years. This is not one of them.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.