Eduardo Kobra’s breathtaking 32,300-square-foot graffiti wall took over Rio’s Olympic Boulevard.

This stunning Brazilian library contains the largest collection of Portuguese texts outside of Portugal itself.

This medieval city gate is now a blend of the past and the modern world.

San Gennaro, the patron saint of Naples, greets pedestrians between these narrow city streets.

In a city that boasts four separate inclined cable railways, this is one of the busiest funicular lines in the world.

Every day is like Christmas on this street where the traditional Neapolitan nativity scene comes to life.

This shining multicolored metro station deep under Naples is said to be the most beautiful in Europe.

In addition to showing films, this one-screen arthouse cinema from the late 1940s is a museum of old film equipment.

A replica of the Roman emperor in glorious full color.

A small sanctuary carved into the mountainside near the tallest point in continental Portugal.

This Portuguese bullring is built right into the caldera of an island volcano.

A neolithic tomb converted into a tiny chapel.

This architectural beauty is the home to a personal collection of more than 600 examples of mechanical musical instruments.

A micronation on an islet along the coast of a Portuguese island.

A small but charming botanical garden that contains many exotic plant species.

This star-shaped military outpost is now simply trying to protect itself from neglect.

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

When Azorean green tea meets volcanic hot springs water, a luminous brew is born.

One of the smallest bookstores on the planet.

A small Portuguese cottage formed between boulders in the countryside.

A stunning 18th-century site where pilgrims ascend by a series of punishing stairs only to return via funicular.

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

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.