Narrowest house in Boston.

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

The thousands of shades on display — some toxic, others impossibly rare — are a library of more than just color.

The massive machine creates cracking displays of indoor lightning.

Located just behind a quiet residential neighborhood, this is ground zero for the Salem witchcraft hysteria of 1692.

The walkable ruins of an 19th century hotel, destroyed in a horse cremation gone wrong.

No one really knows how these old hobby horses got here, but the herd keeps growing.

Offal and flawless onion soup are on the menu at this restaurant that once catered to the workers of Les Halles.

If you look closely at the oldest bridge in Paris, you might notice hundreds of ugly faces leering from its sides.

This frog-themed restaurant was frequented by Picasso, Saint-Exupéry, and more.

Every Saturday morning, this microbakery fills up with freshly baked pastries and sourdough breads.

Life-sized statues of two characters from a decades-long Japanese film series stand outside Shibamata station.

Stuck in a bygone era, the oldest subterranean shopping street in Japan hides beneath the popular Asakusa district of Tokyo.

Sidle into a side alley for a taste of sumo wrestlers' traditional hot-pot soup, in a tiny restaurant founded by a former competitor.

Discover the past, present, and future of packaging in this unique Japanese museum.

A beautiful 62-acre Catholic shrine and botanical garden.

One of Chicago's last seafood smokehouses perfects a dying breed of fishcraft.

How did a 2,000-year-old Roman column find its way to a Chicago park?

Kwanu'sila the Thunderbird has been silently watching over Chicago for more than 100 years (kind of).

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

The last remaining 19th-century tenement from Boston's old West End neighborhood.

Historic Hull Street was actually the first street with a proper name in the Boston area.

This ambitious father and son team reigned supreme over the North End, and witches, for many years.

A former zoo turned public park, where visitors can hang out in the old animal cages.