Amidst towering office buildings, a local pub lives inside Sheffield’s oldest surviving domestic building.

The whimsical steel spider lurking in the shadows of this suspension bridge shows that engineers can have a sense of humor.

This former church is believed to be one of the first Christian sites in Belfast Lough.

This woodland area is a lasting tribute to the Queen Mother.

Whimsical woolen creatures have taken over this historic Northern Ireland park.

This mysterious Bronze Age standing stone has become a place where couples profess their love.

A boulder in the Churchyard of Down Cathedral marks the legendary burial place of "The Apostle of Ireland."

A stunning Victorian abbey and walled garden on a lakefront.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

This fairy-tale, neo-Gothic church in the Azores is a world of magical realism.

Europe's oldest still-operational tea farm also boasts a spectacular view.

This abandoned five-star hotel is now a five-star urban exploration destination.

This abandoned viewing platform has become a monument to unnecessary government spending.

This architectural oddity is an oasis of green on the outskirts of Valencia.

Vibrant street art created with mixed media.

This massive fiberglass Gulliver turns every visitor into a Lilliputian.

This house's itty bitty size means no humans allowed.

Walk into an underground archeological dig, the site of the Roman Forum that was once the center of Valencia.

This amazing example of Valencian Art Nouveau looks more like a cathedral than a public market.

The extremely grey columns of one of Mexico City's most iconic beltways are slowly gaining a bit of color.

The ruins of the bathhouse used by the ill-fated last Aztec emperor still lie in Chapultepec Park.

This foreboding building was the headquarters of the terrifying Spanish Inquisition in Mexico.

Mexico City's largest market contains a Willy Wonka-esque wonderland.

These haunting ruins of a 700-year-old Prehispanic city have witnessed centuries of wars and massacres.