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

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

London's old-school healing garden.

A little slice of Japan and its aesthetics in London's Holland Park.

A historic house left in "dramatic still life."

This 1920s Dutch barge is now a floating bookstore.

A tongue-in-cheek arcade where the games are based on everyday life.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

A kaleidoscopic warehouse-maze of handmade neon signs.

This 16th-century monastery was founded to cloister the daughters of wealthy local families.

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

These ruined Incan mausoleum towers still bear carvings of sacred animals on their blocks.

It took 82 years and four different plaques to finally get the story right.

Now containing the bones of the actual conquistador, instead of someone else.

One of the world's tallest waterfalls wasn't revealed to the world at large until 2006.

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

An ancient Incan convent on Lake Titicaca's Island of the Moon.

Mysterious Incan ruins on a tiny island in Lake Titicaca.

This giant Christ took first place in South America's religious arms race.

The celebrity luchadores of La Paz are tough ladies in traditional petticoats and braids.

This lake’s emerald green waters are a spectacular sight, but it’s not a great place for a swim.

Bolivia's needle-like rock formations.