A former church transformed into a public library.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

Canada's largest dinosaur skeleton was hidden away in storage for more than 40 years.

A contemporary fresco movement illustrates the region's rich history.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

City law dictates that this mountaintop cathedral containing the heart of a saint is to remain the tallest building in town.

Its columns were all carved from the same white oak tree.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

This inexpensive lodging house was once a prison notorious for its inhumane practices.

Louise Bourgeois' 30-foot-tall steel spider sculpture.

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

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

A vast Communist-era exhibition space in the Bulgarian capital.

"Holy Wisdom" overlooks the city that became its namesake.

A striking symbol of the Bulgarian capital.

A collection of art from Bulgaria's time as a communist state.

A Bulgarian monument to Russia's role in World War II is constantly being painted in pop culture protest.

Popular tourist destination where witches in dark hats sell dried llama fetuses for good luck.

Over a millennium ago, this site on the shores of Lake Titicaca was home to a city of more than 10,000 people.

A little sculpture with a large wardrobe.

The beautiful baroque library of the Hapsburg empire.

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.

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