As can be expected from a centuries-old church built in a canal city, the undercroft of this house of worship is beautifully flooded.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

An intricately decorated tiny place of worship.

The colonial city's social history is reflected in its fanciful door knockers.

Alleyway plaque commemorating the death of a fictional character in The Maltese Falcon, not far from the author's home.

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

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.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

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

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 humble garage, world-famous for being the epicenter of a technology revolution.

Rodin's famous depiction of Dante's 'Inferno', amidst a sculpture garden of many of his other works.

Vacant Beaux-Arts buildings that serve as reminders of a beach town’s glory days.

Now abandoned, the first public health hospital in the U.S. saw more than one million immigrants from around the world.

The creek where a shark wreaked terror upon New Jersey, and served as the inspiration for "Jaws."

A unique sculpture park that specializes in the huge and bizarre.

This steep cable railway has been hoisting passengers in the heart of Québec City for over a century.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

What happens when a sculptor has to find a way around a 100-year-old copyright.

A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.

One of the largest underground systems runs under Canada's largest urban center.