Pre-Nazi swastikas adorn the sculpted pachyderms flanking this brewhouse portal.

The oldest pub in Ireland may also be the oldest surviving bar in the entire world.

The ruins of a monastery that dates to the 7th century.

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

A monument to a 19th-century Irish woman whose murder inspired several literary works.

A former smithy turned cultural hub with the capital's largest mural space.

A gated cross stands on the site where an Irish revolutionary met his end.

Inside Cork's Kent station stands its country's longest-serving postbox.

On the clock tower at St. Anne's Church in Cork, you never know which face is telling the truth.

The only surviving piece of Copenhagen's 16th-century defensive wall.

An unconventional and naturalistic sculpture depicting the artist marking his territory on an exterior faculty wall.

An ultra-modern diversity park in Denmark has turned an entire city block electric pink.

This unique architectural wonder is home to luxury apartments.

The final resting place of one of the brightest physicists of the 20th century.

The final resting place of the author who gave us the Little Mermaid, the Ugly Duckling, and many more beloved fairy tales.

The last Viking king of Denmark is buried inside the crypt of this cathedral.

This risqué sculpture, based on a Hans Christian Andersen fairy tale, caused outrage 35 years after it was erected.

See what remains of a once grand ancient Roman circus.

The secret medieval communication system will whisk your words above the noise of the crowd.

Locals believe this abandoned ruin on the outskirts of Bucharest is haunted.

This sculpture used famed boxer Joe Louis as the inspiration behind its body.

The first statue to be added to Saint Peter's Square in over 350 years is an ode to migrants and refugees around the world.

This historic fountain is a favorite neighborhood meeting point.

A lush indoor jungle fills this bustling Madrid transportation hub.