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

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

Known as "Toronto's Flatiron."

This whimsical fountain pays tribute to Toronto's four-legged friends.

An oasis of calm amid the chaos of the boardwalk, the museum traces the heritage of this beloved beachside amusement park.

A wooden rollercoaster that still delivers a thrill.

Known as the “Official Greeter of Juneau,” this dog still welcomes ships and their passengers to Alaska.

A whale of a public art display towers atop Juneau's cruise ship dock.

A wall of chewing gum moonlights as collective art.

The tech giant built three enormous glass orbs in Seattle so employees could work inside a rainforest greenhouse.

The façade of this building looks like a bingo board, but it's really a giant clock by a famed graphic designer.

A poem by Arthur Rimbaud is inscribed on the wall of a street that, while it is only one block long, plays a key role in multiple novels.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

This 400-year-old tree is actually an immigrant from North America.

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

The smallest bar in Amsterdam has stayed in the family since 1798.

This plaque marks the former home of one of the first women physicians in the Netherlands.

A set of seven houses, each built in a style that represents a European country.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

One of the oldest family businesses in Reykjavík serves lamb-based hot dogs.

The exhibition explores the Icelandic city's Viking Age history.

A black sand beach where glacial fragments wash ashore and look like sparkling diamonds.

Three columns of volcanic rock shoot out of the ocean.

Strange rock formations tower above the river that snakes through this enchanting Icelandic canyon.