A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

Cars mysteriously roll uphill on this street.

Plagued by riots, celebrity injuries and a tragic death, this amusement park has been demolished.

A 125-meter long "tribute to the Brazilian people."

Crumbling remnant of Rio's colonial past tucked behind Corcovado mountain in the neighborhood of Cosme Velho.

This sculpture garden creates a whimsical aura in an urban and wild environment.

Known as the "Finger of God," a dramatic rock formation resembles a divine hand extending towards the heavens.

A beautiful midcentury mural by the famed Brazilian modernist artist Emiliano Di Cavalcanti.

An enigmatic mural hiding in plain sight in one of São Paulo's busiest metro stations.

This necropolis is home to eclectic funerary art and is the final resting place for much of the city's nobility.

This intriguing museum chronicles the history and impact of immigration in Brazil.

This attraction is devoted to the wonders of steam power and features a replica of one of its most public disasters.

This Brazilian Lady Liberty is one of the few replicas that was actually made by the original designer.

This Brazilian astronomy museum allows guests to gaze at the stars through their telescopes each weekend.

The bookstore with bookshelves built into unlikely places.

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

This unreal Portuguese palace looks as though it's made from a pile of different castles.

This Navarrese cave's history of witchcraft and pagan ritual is not just embraced, but recreated each year.

This giant mural of Santa Muerte in downtown São Paulo reminds passersby of their own mortality.

Situated on a sacred Inca site, this 16th-century cathedral took nearly 100 years to build.

This geometric feat is a testament to the Incas' mesmerizing architectural abilities.

It took 82 years and four different plaques to finally get the story right.

These small sculptures pay homage to the lovable star of an iconic Argentine comic strip.

This Brazilian palace island was once the site of the last grand ball before revolution.