The only remaining historic maritime signal station in the United States.

This exuberantly curated landscape is one of the largest sculpture gardens in Canada.

Every year, the colorful murals of Montreal get a complete makeover.

A Montreal deli that was so beloved that it was allowed to circumvent their laws of language.

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

Beneath the southern end of the Golden Gate Bridge is the “Gibraltar of the West Coast,” a fort built to protect the San Francisco Bay from naval attack.

San Francisco's oldest operating hotel, with a Victorian atmosphere and a "haunted" fourth floor.

A monument to the love people have for their pets.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

A still functioning vaudeville carousel that has operated for over a century boasts a colorful menagerie and past.

Golden Gate Park's historic collection of plants.

The oldest burial ground in the city, final resting place of city founders, Ohlone natives and murderers alike.

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

Its buzzing collection honors vibrator history.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A huge musical instrument played by the ocean.

Once designed as the entrance to Buckingham Palace, this structure was later relocated and stands as a victory arch.

The final resting place to 300 Victorian-era pets hides inside the city park.

Eighty million natural history specimens call this gargantuan museum home.

The world's largest prehistoric copper mine had 30,000 animal bones scattered throughout the maze of passageways.

One of the two original gateways into the Kasbah, this gateway is a nesting site for storks.