The Uros people live on floating reed islands in lake Titicaca.

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

Death rituals and sacrifice inside a Peruvian megalith.

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.

Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

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

The little bear in the "funny kind of hat" has made his way from London back to Peru.

Abandoned bull fighting ring, slowly falling apart in Uruguay.

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

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.

A dangling church built over a Colombian gorge.

An elaborate shrine dedicated to the four corners of the world unfortunately misses its mark.

A turquoise lake within a volcanic crater.

A swing to dangle you off the very edge.

The one-time epicenter of American songwriting is now a little remembered Manhattan commercial block.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

For over 30 years the walls of this Harlem schoolyard have been a gallery of street art by "Kings and better."

Blighted Irish field and the ruins of a 19th-century cottage on the edge of urban Manhattan.

One of only two commuter aerial tramways in the United States.

Elevated freight railway turned wildly successful urban park.

The pioneer of psychoanalysis spent the final year of his life here, still seeing patients on that famous couch.