This 22-floor tower's Skydeck offers panoramic views of Amsterdam.

The world's only museum devoted to the wonders of fluorescence.

Perched above the bustling town of Kerak is a sprawling, ruinous castle that has witnessed nearly a millennia of Levantine history.

This restored eighth-century palace is a shining example of ancient Umayyad architecture.

This exceptionally well-preserved ancient marvel also houses a small museum dedicated to Jordanian folk tradition.

Gladiators battle and chariots race daily in the ruins of a once-great Roman city.

A more chill but no less fascinating version of the famous ancient archeological site.

An ancient capital city that dates back 3,000 years and harbors many surprises.

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

One man’s hobby is another man’s world of metal wonders.

The lecture hall where Alexander Graham Bell first demonstrated the long-distance phone call.

The site of Paul Revere's historic two lantern warning.

Silverware in the sidewalk outside a grocery store cements this neighborhood’s Italian culinary history.

A centuries-old church stands as a testament to Boston's "father of architecture."

The oldest Italian café in Boston, this spot also serves as a veritable museum of vintage coffee ephemera.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

Each August, one of the largest religious (and food) celebrations in the country is held in Boston.

This area was once known for being a lawless haven for rough-and-tumble sailors, earning the maritime-themed nickname "the black sea."

One of the indelible moments of the American Revolution took place at this location.

The history of the tea trade is told in bas-relief on this historic pair of Boston doors.

Some believe this abandoned Brutalist masterpiece inspired George Lucas's Sandcrawler.

An ancient Phoenician citadel once stood at the site where Queen Dido first landed, according to legend.

The ancient heart of Tunis is an enormous maze of narrow streets and alleyways.