Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

A 19th-century architectural wonder designed by the "father of the skyscraper."

Buffalo's abandoned concrete grain elevators are getting a second life.

The seat of Buffalo government is a gorgeous Art Deco palace.

One of Frank Lloyd Wright's greatest—and favorite—architectural masterpieces was almost lost.

A beautifully designed asylum was resurrected as a hotel and art center with a ghost story or two.

The absurd creation is a compulsory destination for selfies in Buffalo.

Detroit’s Eastern Market has been transformed into an outdoor museum with colorful murals that address social issues and symbolize the city.

The birthplace of the Ford Model T is now a museum full of antique cars.

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

The collection of ceremonial and cultural objects spans many countries and hundreds of years.

This railway-turned-greenway provides a pedestrian link in downtown Detroit and celebrates urban artwork.

To truly appreciate Detroit's landmark skyscraper, you have to step inside.

One man's attempt to create an artistic wonder on a run-down block in Detroit.

A wacky two-story folk-art assemblage of carved and found objects, with lights, motion, and sound now in need of financial support.

A Beaux-Arts triumph set to become Ford's innovation campus

This sprawling bookstore spans four floors and has more than a million books in stock.

These murals stand as reminders to the troubled history of this Northern Ireland city.

A museum dedicated to the tragedy of Bloody Sunday.

A medieval abbey featured on 'Game of Thrones' that dates back to the 12th-century.

A trail of "Game of Thrones"-themed doors carved from fallen trees from the iconic Dark Hedges.

It was once nicknamed "the most bombed hotel in Europe."

A beloved upside-down beacon off the coast of Northern Ireland.

A giant sculpture of the legendary "Salmon of Knowledge" celebrates the return of fish to Belfast's River Lagan.