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

On a former island, this old fortification once used to protect the Boston Area and started Edgar Allan Poe in his military career.

This supermarket is suspended 25 feet above an interstate highway.

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

Two thirds of this Montreal neon icon has survived to flash another day.

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

In a town that's had a whole lot of giant chairs this one still stands tall, just not the tallest.

This old mill and former police station now present a world-class collection of Orthodox iconography.

Every equinox this Maya pyramid puts on a spooky ancient light show.

Beach instrument turned bed and breakfast.

This giant monument of the RCA mascot is a beloved fixture in Albany, New York.

Overgrown ruins of a turn of the century island fort that sees very few visitors.

Naturally formed white marble arch housed in an abandoned marble quarry from the 1800s.

This tall Massachusetts folly got its name thanks to all of the purple prose its vistas inspired.

The hill that gave the Massachusett tribe, and later the state, its name.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

The Pope’s secret escape route.

Installed in an act of one-upsmanship, the annual sundial in this church is also a symbolic victory for the Gregorian calendar.

The Emperor Tiberius' palace of debauchery.

Erotic art covers the walls of the largest ancient pleasure palace.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

Ancient snack bar of the Roman Empire re-opened.

The celebrated eyesore created by starry-eyed sweethearts.

This huge pile of volcanic boulders hides a stunning network of secret grottoes.