Martin Bricelj Baraga's monolithic sculpture measures the blueness of the sky, and changes color to match it.

Poetic, metallic giraffes adorn a square off an Edinburgh thoroughfare.

This ancient Egyptian obelisk still bears the wounds of World War I.

The spot where three Protestant clergymen were burned at the stake during the reign of "Bloody Mary."

The former home of the world-famous Templeton Carpet Factory.

The medieval center of the Islamic world was also once the seat of Saladin's sultanate.

Religious perseverance and cultural coexistence manifest in an architectural gem that multiple wars couldn't topple.

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

The modern birthplace of Irish freedom.

One of Ireland's most infamous prisons for rebels including men, women and children.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

Catalonia Tradition: Beating the hollow Christmas log until it defecates in your fireplace.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

A towering monument in Spain has proven to be more labor-intensive than initially planned.

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

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

Commonly acknowledged as the only public monument to the Devil himself.

The solemn exterior conceals an opulent interior of this 17th century church.

An exquisite Baroque church in Vienna's old town.

Baroque celebration of the end of the Great Plague of Vienna.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.