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

This elaborately decorated, fairytale-like Romanian royal palace is one of the most striking castles in Europe.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.

The possible imprisonment of Vlad the Impaler here earned the medieval castle its nickname, "Dracula's Castle."

Romania's triumphal arch looks out over Bucharest.

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

This memorial to the victims of the Romanian Revolution of 1989 is often compared to a potato on a skewer.

This once-derelict building is now one of the most beautiful bookstores in the world.

Called the "Armenian Stonehenge," this ring of menhirs pierced with holes may be a prehistoric astronomical observatory.

This massive piece of artwork weighs more than 250 tons, and was designed as a tribute to the first president of the United Arab Emirates.

Huge stairway leads to this massive gallery.

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

This massive Brazilian church is built like an angular, technicolor pyramid left by Mayans from the future.

A stunning Catholic cathedral built by a curve-loving communist in Brazil’s newly created capital.

This striking, two-toned confluence of rivers is visible from space.

A beautiful opera house in the heart of Amazonia has recently restarted performances after a 90-year hiatus.

The massive gardens and office of a Brazilian sculptor.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

This Peruvian canyon is filled with geometric salt pools that have been being harvested since the Incan empire.

Huge stone depressions which may have acted as an Incan agricultural experiment.

The large collection of pre-Columbian pottery might make you blush.

An Inca spa, military outpost or maybe… both?

A Christian monastery stands on what was once a holy Incan temple.