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

A 400-year-old church covered floor to ceiling in ex-voto offerings from the faithful.

Offal and flawless onion soup are on the menu at this restaurant that once catered to the workers of Les Halles.

Remains of Roman amphitheater hidden in a sleepy quarter of Paris.

A 16th-century fountain marks the site of a lost medieval cemetery once filled with mass graves.

Site of a classic 19th-century physics experiment to prove the earth is rotating.

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

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

Amsterdam's former hotspot for public executions and dissections.

This museum housed in a former brothel explores the past and present of sex work in Amsterdam.

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

This bird-loving brewery is situated in an old municipal bathhouse, nestled beside a 300-year-old windmill.

The video game-themed street art first popped up in the French city.

The third version of this tall sailing ship sits, rusted and burnt, in Lake Ontario.

Travel this route to explore a canyon crafted by ancient glaciers.

A treasure trove of audio technology, from wax cylinders to juke boxes and record players.

Paris' linguistic guide to the international language of, yes, love.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

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

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

A series of abstract, silly sculptures represent the works of a great modern classical composer.

The celebrated eyesore created by starry-eyed sweethearts.

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

This Parisian gem is one of the most incredible ethnographic museums in the world.