You have to know where to look in this rather ordinary-looking square to find hints of its past as a dissidents' cemetery.

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

The narrowest house in Buenos Aires is less than 10 feet wide.

This beautiful fountain was sculpted by a female artist who was ahead of her time.

A beautiful young girl said to have been buried alive in her coffin…

105-foot wide giant metallic flower blooms anew every day in the heart of Buenos Aires.

A tower devoted to — and modeled after — the Divine Comedy.

Buenos Aires' city of the dead contains some very famous remains, including Eva Perón.

This historic, palatial theater is now one of the world’s most beautiful bookstores.

This demon atop the Notre-Dame de Paris looks utterly bored.

This bridge was constructed from the rubble of the infamous Bastille.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

Paris' fabled purveyor of exotic taxidermy and natural history curios.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

The very center of Paris is surrounded by a bevy of strange good luck rituals.

A floating cat sanctuary on an Amsterdam canal.

This bird-loving brewery is situated in an old municipal bathhouse, nestled beside a 300-year-old windmill.

This cheese shop also houses a museum devoted to Dutch dairy.

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

A group of abandoned factories and buildings that have been revitalized and are now used to promote culture, education, entrepreneurialism, and sustainable development.

This majestic building, where Brazil's coffee brokers once bought and sold beans, now houses a coffee museum.

One of São Paulo's tight urban intersections has become a haven for graffiti artists ever since a single Batman started the trend.

The pedestrian traffic signals in Brazil's teeming metropolis light up with clues to nearby landmarks.