One of the foremost Sherlock Holmes collections is hidden away at a Toronto library.

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

A former Canadian Pacific Railway station turned liquor store, the first and only station in Canada visited by British royalty.

A vibrant street away from the typical tourist track, lined with colorful, mosaic-covered houses.

With its vast selection of books, comics, and records, this nearly 70-year-old open-air market always rewards the patient browser.

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

A vast necropolis where you'll find the elaborate mausoleums of Argentinian tango stars.

You have to know where to look in this rather ordinary-looking square to find hints of its past as a dissidents' cemetery.

Museum housed in underground tunnels that date back to Buenos Aires's earliest settlements.

The narrowest house in Buenos Aires is less than 10 feet wide.

A tower devoted to — and modeled after — the Divine Comedy.

This beautiful fountain was sculpted by a female artist who was ahead of her time.

A pocket of Buenos Aires with an unusually high concentration of psychotherapists.

A pocket of serenity in hectic Buenos Aires, complete with a peaceful courtyard and massive library.

This historic, palatial theater is now one of the world’s most beautiful bookstores.

The humble tomb of an Argentine general, hand-built by his son using stones brought down from the Andes.

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

A beautiful young girl said to have been buried alive in her coffin…

A mysterious architectural gem in one of the most elegant areas of Buenos Aires.

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

The house of a former Argentinian president stands protected within a large glass case.

This 17th-century Portuguese fort now houses a nautical museum.

Constructed on the ruins of a convent, this tower saved countless lives.

Abandoned bull fighting ring, slowly falling apart in Uruguay.