Climb this overlooked gem's spiral staircase and you'll be rewarded with spectacular views of Glasgow.

A scattered trail of street art adds a pop of color to the city's stark structures.

A small island abbey is the final resting place of many medieval Scottish monarchs, including the real Macbeth.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

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

Experience what life was like in Ireland during the Viking and medieval ages.

A sacred well steeped in Pagan roots on the West Coast of Ireland.

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

This church houses the “incorrupt” body of its founding Bishop.

The grave of America's 11th president is not in some grand monument but instead it's hidden away on the grounds of the Tennessee Capital.

At 135 years old and counting, this historic print shop is heaven for poster nerds and music buffs.

This replica of the Greek structure is in the heart of Nashville.

A futuristic temple of light uses prisms and rainbows to create an atmosphere of peace.

Faces carved into the cliffs create an otherworldly walking trail.

The structure has welcomed visitors to this scenic harbor city on Lake Michigan for many decades.

This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

Former self-sufficient mental institution now a planned community.

A throwback train ride transports passengers through one of the lesser-known national parks in the country.

The heroic sled dog of the 1925 serum run is preserved in taxidermy.

Talula the swan has been welcoming visitors to Elk Rapids, Michigan, for more than four decades.

The angel of death appears to weep black tears at this grave marker.

A collection of Witchcraft artifacts and occult paraphernalia started by the leader of the Long Island Coven.