This sound-art installation features songs composed using only the Mid-Hudson Bridge as an instrument.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

The only example of a Paris Métro sign in use at a subway station outside of the French capital. 

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

Small ship votives hang from the vaulted ceiling of this port-side church with a Latin inscription on the wall.

A historic Montreal market that was the city's agricultural hub for over century.

This Delaware River bridge is emblazoned with a catty slogan from a more prosperous time.

A serene space tucked amid the skyscrapers of Hong Kong's bustling financial district.

This hulking behemoth is actually five interconnected towers built in the 1960s.

Three floors above a 2,000-year-old royal tomb is a rare collection of ancient porcelain pillows.

The world's tallest circular building is loaded with symbolism, but many just see a big donut.

The world's longest outdoor covered escalator system transports commuters through Hong Kong's hilly terrain.

Climb to the top of the world's largest seated bronze Buddha.

270 million year-old forest of stone.

The memorial gravesite of the young composer of China's national anthem.

Neon signs that grace the windows of Bergdorf Goodman's and Tiffany & Co. come from this studio in Brooklyn.

This once-private estate is now a dreamy, meditative garden that's open to the public.

One man's swirling six-acre monument of stone.

Avoid gangster interaction while window-shopping.

Order scoops of pandan, lychee, and black sesame at this family-run institution.

Dedicated to the art and science of glass in equal measure, this space is as much laboratory as museum.

One of the world's largest model railroads is a mind-boggling achievement.

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

This elaborate towering structure was once famed for its revolutionary height.