Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

Spain's largest bullring offers a unique glimpse at architecture and history.

A 16th-century Andalusian palace.

The final resting place of the great navigator, or maybe his brother.

Remarkably intact Roman stone fortifications have encircled this Spanish city for centuries.

Thanks to an acoustic anomaly, this unassuming stone bench has heard one hundred years of secrets.

This enormous censer uses a pulley system installed over 400 years ago.

The mysterious remains of a martyred teenage saint are venerated inside a small country chapel.

This small, lush island has a long and bloody history.

A 12th century church completely covered in shells.

Crumbling World War II-era gun emplacements still stand near lighthouses on the Spanish coast.

The oldest Roman lighthouse still in use.

This shop for all your super spy needs hides an educational secret.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

A lush green oasis in the middle of Chicago.

Funded by John D. Rockefeller, this is one of the earliest, and most beautiful, shopping arcades in America.

This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.

Georges Seurat’s pointillist masterpiece has been recreated in Ohio in topiary form.

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

This 20-foot-tall sculpture is in honor of the herd of bighorn sheep that call Radium Hot Springs home.

The colorful, smiling concrete silos of Vancouver.

While these wooden totems bear a striking resemblance to First Nations artwork of British Columbia, their actual origins lay on the opposite side of the Pacific Ocean.

Traditional 15th century Chinese garden in the middle of Vancouver.

This expansive bridge in the Canadian wilderness was originally just built for friends.