This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.

A beautiful but toxic fountain of mercury.

A shining sculpture made of 3,115 lights, the number of visible stars in the Northern Hemisphere.

An outdoor urban gallery of large-scale artworks by the world's most influential street artists.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

An unoccupied lighthouse encased in layers of ice from the waters of Lake Erie.

This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.

This steamer is known as "The ship that built Cleveland."

Cleveland's giant "free" stamp is a nod to the Civil War, but was misinterpreted for years.

Marvel at this turn-of-the-century masterpiece that has been turned into a rather stately supermarket.

This evocative New Jersey statue memoralizes the Polish victims of a Soviet massacre.

Nassau Hall has served as army barracks, a museum, and played a key role in the American Revolution.

A wooden theatre that remains the heart of a charming Victorian-era New Jersey enclave.

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

On the Hudson resides one of the largest clocks in the world.

Historic town settled in the 19th century because of its convenient location along a popular coal transport route.

A historic grist mill and active sluice on the Black River.

A farm in New Jersey grew a most unusual crop for AT&T's testing purposes.

A world-class collection of mechanical musical instruments and automata.

A trompe-l'oeil statue honoring the first guide dog in North America.

Series of storm drains connected to a dark urban legend.