This print shop boasts one of the largest pinball arcades in San Francisco.

The remains of a 12th-century chapter house in Golden Gate Park.

One of the last remnants of the city's Chinese nightclub scene is now a dive bar selling killer mai tais.

A collection of memorabilia from the Beat era in the back of a San Francisco bookstore.

A hidden subterranean installation offers a view of the sky.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

Tiki luxury on Nob Hill.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

A psychedelic labyrinth on the San Francisco bay.

From lefty Jewish gathering site to hip cultural site in just 80 years.

This hidden park hosts a rogue’s gallery of eccentric architectural obelisks.

A massive Montreal stadium that has seen nothing but trouble since its inception.

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

Montreal's giant farmer's market is a foodie's best friend, especially in the winter months.

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

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

The skyline of Montreal includes the silhouette of an unexpected fruit-shaped Canadian staple.

One of the last of the great 1920s movie palaces is a Floridian Greco-Spanish-Persian dreamscape.

Thanks to an acoustic anomaly, this unassuming stone bench has heard one hundred years of secrets.

An accidental trick of light casts the perfect shadow of a pilgrim of the Camino de Santiago against the cathedral wall.

This enormous censer uses a pulley system installed over 400 years ago.