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

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

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

A beautiful example of 18th-century engineering still standing tall.

An American ghost town hides along a side street in Scotland's capital.

This stack of stones honors a murdered 18th-century woman.

This sculpture commemorates Edinburgh's sister city and their respective celebrity dogs.

One of the world's richest men bought this former paper factory and transformed it into a mall.

A coastal monument honors one of Mexico's most notable immigrant groups.

The one-time stronghold of the noble Douglas family, now home to ghost sightings and nesting birds.

This exquisite example of early colonial architecture remains unfinished almost 500 years after construction began.

The ruins of the second of three churches dedicated to the saint in a touristic Scottish town.

This Mexico City subway station will make you feel like you've been transported to the London Underground.

Half-hidden by grassy slopes, this striking Spanish colonial fort is now a museum of underwater archaeology.

Trek through the jungle on a boat and a swinging bridge and you'll be rewarded with these refreshing, if pungent, mineral pools.

This modernist church's massive sci-fi dome may be one of Latin America's largest.

The ruins of a 15th-century church once home to priests who prayed for a single family's salvation.

After a partial collapse in the 1950s, this small church's historic facade lives on.

This colonial mining complex is now home to magnificent themed gardens.

A fairytale-like grove with a crystal-clear spring bubbling under the shade of a massive ancient tree.

This repurposed church offers a more literal way to get closer to the heavens.

This Oaxacan town is known for its colorful fantastical creatures hand-carved by local artisans.

Its incredible collections are dedicated to preserving Mexico's film history.

The last remaining bottle-shaped kilns in Scotland stand alone in an Edinburgh suburb.