This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

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

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

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

France's most famous cemetery, with some of its most curious tombs.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

Notorious artist squat renovated into legal studios.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

Every year model trains zip through a miniature New York City that's now 150 landmarks strong.

The one-time office of the architectural firm that ushered in the Gilded Age is now a Club Monaco.

There must be a pun in this haystack somewhere...

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

A grand New York post office that is home to mailman Santas, scraps of postal history, and a pneumatic mail system.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

The greatest real estate coup of all time.

An artist's cute bronze subway sculptures belie his violent artistic past.

Avoid gangster interaction while window-shopping.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

A very classy 1920s-era bar right in Grand Central Station.

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

Love, knishes, and best wishes from this legendary Lower East Side bakery.

This exemplar of modernist architecture is meant to captivate and inspire students of the Cooper Union.

Red frames showcase remnants of one of New York's original subway stations.