This colorful creation wasn't always a welcome part of Toronto's Moccasin Trail Park.

The Victorian-era greenhouse is stuffed with tropical plants, and open 365 days a year.

Smallest house in Toronto sits on a lot meant to be just wide enough for cars to drive through.

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

A botanically themed auditorium blooms within the world’s last operating double-decker theater.

Russian history in San Francisco.

The giant pair of sexy legs sticking out the window of this costume store have become its main draw.

A library and museum dedicated to typography.

Golden Gate Park's historic collection of plants.

A historic hotel that made a cameo in Hitchcock's classic film has no intention of letting guests forget its fame.

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

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

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

Olfactory delights in San Francisco's Botanical Gardens.

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

A 140-year-old castle with underground caves hidden in San Francisco.

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.

An artsy hidden staircase leads to breathtaking views of San Francisco.

An enclosed rotunda at the Henry Art Gallery in which viewers can look up and see the uninterrupted sky.

Though strikingly beautiful, Seattle's other railway station is now largely forgotten.

Spanning an elevation of 160 feet and containing 388 steps, this is Seattle's longest staircase.

A beautiful final resting place for some of the noteworthy deceased.

A colorful architectural gem in Seattle's uniquely modern Central Library.