This off-limits room in the National Library of France is home to a system of pneumatic tubes, once used to bring books to readers.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

Manhattan's deadly West Side railroad, which killed hundreds of New Yorkers, is remembered by this simple plaque.

Noirish green neon marks the location of one of the oldest private detective agencies in France.

This stunning French estate was so lavish that it landed its original owner in jail for the rest of his life.

Michael Jackson got Bad and Crocodile Dundee walked on heads in this iconic Brooklyn subway station.

This Fifth Avenue church has long been the favored worshiping place of Broadway actors and vaudeville performers.

In the best of all possible worlds, everyone will get a chance to see this statue in which Voltaire's heart is interred.

The Underground Railroad passed right through this historic Brooklyn Heights church.

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

A museum of magic with a Sadist past.

Constructed in the 1920s, this former pencil factory is now an office building.

This salt marsh in Southern France is as pink as the flamingos that inhabit it.

This monument to a veteran of the Mexican-American War is one of only two in Manhattan that serve as an actual mausoleum.

Once a popular watering hole among longshoremen and shipyard workers, this neighborhood treasure spans more than 100 years of Red Hook history.

This vacant church in the Financial District was once the heart of New York's first Syrian immigrant community.

The oldest bibliophilia club in America, with exhibitions on historic books and graphic arts.

This simple Manhattan salt house is artfully shaped... well, like a giant granule of salt.

This city park was once a lookout point for George Washington’s army during the Battle of Brooklyn in 1776.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

A convincing little bit of ancient Egypt smack dab in Richmond, Virginia.

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

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

A historic Montreal market that was the city's agricultural hub for over century.