The oldest continuously operating mint in the world that has been making coins since the 9th-century.

Shop at the 200-year-old store where Julia Child stocked up on copper cookware.

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

With a history of slaughter, feast, and famine, remnants of the pork industry decorate this area--even its church.

This bridge was constructed from the rubble of the infamous Bastille.

Marie Antoinette and Napoleon Bonaparte were fans of this 200-year-old French chocolatier.

The spiral staircase hidden inside this giant Parisian column was likely built for Catherine de Medici's astrologer.

A mud statue stands in the dark tunnels, seeming to hold up the weight of the city above.

This structure atop a craggy cliff in one of the most beautiful parks in Paris boasts an unbeatable view.

The first green space constructed on an elevated viaduct.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

This modest marker near Notre Dame identifies the very center of Paris.

Since its original beginnings as a weather observatory mountaintop, this facility played an instrumental role in gathering atmospheric data for almost 100 years.

Though many were skeptical at first, these animal-specific routes across the Trans-Canada Highway have been a major conservation success.

The oldest natural history museum in western Canada houses more than 5,000 vintage botanical and zoological specimens.

Try the alligator at this fondue spot, which has been catering to "lovers and hedonists" since 1967.

This elegant Colombian fortress was one of the torture headquarters for the Spanish Inquisition.

A museum filled with tiny, adorable versions of the mighty Royal Danish Navy.

A model memorial to the original Odin Tower, the second highest tower in Europe before it was sabotaged by Danish Nazis.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

The longest escalator in the Western Hemisphere takes over three minutes to ride down.

This church was transported brick by brick from the ruins of a 16th-century city into Panama City's current historic district.

The predecessor to this bridge was depicted in a famous Japanese woodcut print that influenced Van Gogh.

A grand Buddhist temple with Indian influences.