An unusual and beautiful form of mass transit serves the city's steepest neighborhoods.

In the heart of Medellín, an artsy urban complex sets the stage for demonstrations and protests.

Home to 23 voluptuous and instantly lovable sculptures by one of Latin America's most celebrated artists.

Three hundred illuminated pillars form an “artificial forest” in Medellín.

An oddity shop inspired by the history of the circus.

An exotic wildlife habitat right off The Strip.

This vintage animatronics show is the Vegas version of a walk through the woods.

Along with his smaller donkey pal, he guards the museum’s exhibits and memorabilia.

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

A collection of more than 12,000 shoes, displayed in a building shaped like a shoebox.

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

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

A decaying, yet still functioning, work of communist architecture.

The Grand Mall in Varna hosts one of the biggest collections of Soviet-era paraphernalia in Bulgaria.

A Brutalist monument in the middle of a housing estate by artist Victor Pasmore.

This former sewage pumping station is now a fascinating museum.

This windmill is believed to be the oldest in the British Isles.

An ornate and disused early 20th-century building has been given new life as a fully operational structure, complete with offices, oyster bar, and a furniture retailer.

The largest timber structure in Europe.

A museum that chronicles the interesting and often dark history of the London docklands, once one of the major trading ports of the world.

Locals call it the "Give Peas a Chance" bridge because of its distinct graffiti.

Locals spent years successfully fighting to save this beloved Brutalist behemoth from demolition.

Formerly known as Saville Theatre, this mid-20th-century entertainment hub includes an ornate frieze.

This slice of 1960s Danish modernism does not conform to the Oxford college stereotypes.