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

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

The world's longest known cave system.

Prehistoric animals decorate this popular outdoor park.

A bizarre house filled with an astounding array of collections.

The clothes-washing king doubles as a community center with some unusual features, including an aviary filled with finches.

This working class sculpture pounds his hammer all the livelong day.

42nd story Pyramid shaped penthouse tops Seattle's oldest skyscraper.

A wall of chewing gum moonlights as collective art.

A museum dedicated to the history and exploration of both popular music and science fiction.

60 feet of towering steel balances gracefully.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

A common entry point to the Griffith Observatory trail holds its own wonders.

There are lots of hands and feet stamped in the cement in front of Grauman’s Chinese Theater, but Mel left behind something extra.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

World-famous, Pink's still manages to keep its prized cult fetish status.

Resting place of Hollywood's immortals is also site of summer film screenings.

This enormous "shamoji" means more to the people of Miyajima than just a way getting rice onto a plate.

Once a black market electronics marketplace, now an otaku shopper's paradise.

A plaque marks the site directly below the mid-air detonation of the atomic bomb over Hiroshima.

This Buddhist temple is home to the graves of the Japanese national legends, the 47 Ronin.

Japanese national treasure originally built in 593 CE.

Elaborate series of tunnels where traces of mass suicide are still visible.