19th century pendulum and a clock restored by a rogue group of guerilla artists.

Natural history museum celebrating biodiversity with a parade of taxidermy animals.

A unique music museum housed in a historic Boston theater.

Every year, the colorful murals of Montreal get a complete makeover.

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

A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.

One of the oldest medical collections in Europe focusing on rare surgical instruments.

Small ship votives hang from the vaulted ceiling of this port-side church with a Latin inscription on the wall.

A floating cat sanctuary on an Amsterdam canal.

A blacklight mini-golf fever dream pays tribute to the iconic rock band.

A New England ghost town features a trail of boulders etched with intriguing life lessons.

Futuristic apartment blocks are the backdrop for Montreal surfers hangin' ten on the Habitat '67 standing wave.

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

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

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

The largest collection of handbags in the world, the oldest of which were used to carry Bibles, primarily by men.

A haunting collection of the vanished and disappearing natural world.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

The very center of Paris is surrounded by a bevy of strange good luck rituals.

The remaining relics of the patroness of Paris lie in a chapel under a striking double spiral staircase.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.