A unique columnar residence built in the 19th century.

Eat first, shop later at this eatery within an Asian grocer.

Go inside to really appreciate this 500-year-old technological masterpiece.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

This cemetery served as the only official burial grounds in Cambridge for nearly 200 years.

Impossibly life-like natural history models created out of glass by a father and son.

Three prestigious academic collections come together to create a world-class natural history museum.

This tower commemorates the spot where George Washington hoisted the Grand Union flag.

A monument marks where a convent was burned by an anti-Catholic mob in 1834.

This Massachusetts home was the first to have a telephone line and its own phone number: 1.

One of America's most historic homes also holds a startling literary legacy.

A nun spent 16 years painting the stunning Celtic mural that covers the interior of this WWI memorial.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

Montreal's colorful subway station shows its support of the local LGBT+ community.

Montreal's giant farmer's market is a foodie's best friend, especially in the winter months.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

Rome's semi-secret peephole vista is also a former Crusader stronghold.

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

A former waterfront market is now in the center of town due to some interesting Boston engineering.

An easy-to-miss garden in Boston's North End honors the mother of JFK and others who lost children in WWII.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

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