Lost subway station nestled beneath Toronto's busy commuter line.

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

One of Canada's most incredible rare book collections holds hundreds of thousands of gorgeous tomes that the general public can touch.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

The blinking light atop the iconic landmark has been sending secret messages for decades.

A few iconic structures are all that remain of America’s first outdoor shopping mall.

This Chase branch is an homage to Old Hollywood.

This centerpiece of the Hollywood & Highland shopping center is a recreation of a long-lost movie set.

The decor of this Hollywood movie palace just barely predated the opening of King Tut's tomb.

A small pack of an ancient, hairless breed of dog once believed to guide souls through the underworld lives on its grounds.

This macabre masterpiece of a mural is one of Francisco Goya's "Black Paintings."

The cave holds a spectacular array of stalactites and stalagmites, including one shaped like a giant human heart.

It looks like a whale, it's part of Yale, and it's best-known by a nickname you can probably work out for yourself.

This precariously balanced boulder is said to be a hunk of stolen butter dropped by the gods.

The mall's looks were inspired by the cowboy extras who used to meet up—and cause real trouble—at this Hollywood hub.

Hidden in one of the skyscrapers on Bunker Hill, this museum features an 1895 stagecoach and peers into California’s gold-lined history.

This float factory takes the mask off of Mardi Gras and lets visitors see where the magic happens.

This strange example of the Egyptian Revival architecture trend now holds Mardi Gras floats.

A little piece of Paris in the sultry south of the U.S.

This historic "City of the Dead" lies prominently in the center of New Orleans' famous Garden District.

A house of courtship where the Jazz Age's most storied lovers got their start.

A typical "Old South" manor, once owned by author Anne Rice, served as the setting for several of her witchcraft sagas.

This historic New Orleans cemetery is the final resting place of members of the Independent Order of Odd Fellows.

New Orleans' famous cemetery, located on the site of a former race track.