The castle was reconstructed to fit Kaiser Wilhelm II's romanticized vision of the Middle Ages.

There has been an astronomical clock on this spot since the 14th century.

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

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

A museum which takes visitors to the côté obscure of Paris.

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

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the 20th century.

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

The curious underground history of keeping Paris clean.

A collection of birdhouses await curious motorists and avian squatters.

This handsome giant is said to mark the birthplace of the mythical woodsman and even had a cameo in a Stephen King novel.

The world's largest rotating world.

A massive Montreal stadium that has seen nothing but trouble since its inception.

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

The biggest museum dedicated to insects in North America, one of the largest in the world.

Try not to get slimed in Tribeca.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

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

A clone-tree in Washington Square Park sprung from seeds that went to the Moon and back.

This steep cable railway has been hoisting passengers in the heart of Québec City for over a century.

A contemporary fresco movement illustrates the region's rich history.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.