One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

An ancient knight and a symbol of the city's freedom.

This fortress dates back to the 6th century and is also the site of a controversial abandoned restoration project.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

One of Gettysburg’s least visited battlefield memorials is off the beaten path, but worth a visit.

This small exhibition displays equipment and artifacts once belonging to the feared Stasi secret police.

A bronze replica of an elm tree that honors the victims that perished in Pawaik Prison.

The oldest of only three existing statues of the great novelist stands in a city he did not care for.

America's first serial killer rests in anonymity.

One of the oldest log cabins in America is one of the last of its kind this historic Swedish dwelling remains a piece of living history.

Surrounded by industrial sprawl, a small monument marks the site of William Penn's first landing in Pennsylvania.

North America's oldest quarantine facility was built in response to Philadelphia's 1793 yellow fever outbreak.

The tallest church in Mechelen might have been the tallest in the world if not for a lack of funds.

The Master of Magnetism dominates the walls of a scrap metal yard to keep graffiti artists at bay.

This Delaware River bridge is emblazoned with a catty slogan from a more prosperous time.

Its interior is adorned with some of the best examples of early Christian mosaics.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

An ancient Egyptian temple in the middle of Madrid, Spain.

This fascinating and poignant museum chronicles every imaginable aspect of Spanish colonialism in the Americas.

The last remnants of Fort Pitt also hold the distinction of being the oldest structure west of the Allegheny Mountains.

This giant disembodied horse head seems to balance impossibly on its nose.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

An Irish Memorial commemorating those who perished due to potato blight.