Gilded heaven for philatelists and architecture freaks, still in full working order despite sitting atop tremulous ground.

The collection of intricate sculptures includes one carved from a mammoth's tusk

A bright little alley in La Boca is a part of tango history.

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

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

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

This public elevator links the lower city to the upper city of Salvador.

Beautiful public park off the beaten path and away from tourists.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.

As one of the world's largest hydroelectric dams this plant took two countries to get built.

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

This singular art museum in São Paulo is unique inside and out.

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

The bookstore with bookshelves built into unlikely places.

The crypts are so large they're basically their own underground church.

Once home to an aristocratic family and a workers' organization, this intricately tiled building now houses a chain restaurant.

The underground mall's skylights look like they could be part of a spaceship.

The unique collection of gifts includes braids of human hair, a spoon, and a Virgin made of bread.

The unique collection often goes unnoticed by visitors focused only on the archaeological objects.

Inside a busy metro station, an impressive mural depicts the prehispanic city of Tenochtitlán.

On a cornerstone of the City Museum is the head of a monstrous serpent stolen from an Aztec pyramid 400 years ago.

This foreboding building was the headquarters of the terrifying Spanish Inquisition in Mexico.

These haunting ruins of a 700-year-old Prehispanic city have witnessed centuries of wars and massacres.

A museum in the former home of Marxist revolutionary Leon Trotsky.