A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

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

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

This striking, two-toned confluence of rivers is visible from space.

A beautiful opera house in the heart of Amazonia has recently restarted performances after a 90-year hiatus.

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

Solitary monument dedicated to the beauty of nature.

This Brazilian astronomy museum allows guests to gaze at the stars through their telescopes each weekend.

Something about this Brazilian city is slightly askew... literally.

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

A snake farm famous for its venemous varieties.

If you’ve ever seen a picture of Machu Picchu, then you’ve seen a picture of Huayna Picchu—you just didn’t realize it.

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

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

This Peruvian canyon is filled with geometric salt pools that have been being harvested since the Incan empire.

Sofia's legislative center is continuously reinventing itself.

Come for the speed, leave in love with the desert.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

On this tiny spot of land in the middle of Lake Titicaca the only ones who do the knitting are the men.

A striking symbol of the Bulgarian capital.

An homage to the medieval rulers of Bulgaria.

Budapest's Communist-era statues, banished to the suburbs.