This expansive bridge in the Canadian wilderness was originally just built for friends.

This 1967 experiment in modular architecture was designed to be a new model for urban living.

A cablecar-station-turned-revolving restaurant with 360-degree views of the Swiss skyline.

One of Antoni Gaudí’s earliest buildings, built between 1886 and 1890 for the industrialist Eusebi Güell.

Swarovski's museum/theme park is a fake diamond fantasia overlooked by a giant.

Amsterdam's narrowest house facade is a monument to 17th-century tax evasion.

Birthplace of the "Cat in the Cradle" and a cluster of iconic, original windmills that let the Dutch tame the seas.

The first piece of public art dedicated to LGBT rights.

Salute the leader of the proletariat.

This lavish room in a New York City mansion is a rare relic from the end of the Gilded Age.

Though its celestial ceiling is impressive, the true star is the vast collection of French books.

Tucked away amidst some of the most famous addresses in the world is New York’s only fraction of a street.

The oldest operating apothecary in the US has treated everyone from Thomas Edison to Mark Twain.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

The statue of John Harvard isn't actually John Harvard—or even, technically, the founder of the school.

The poems Nathaniel Hawthorne and his wife Sophia etched into its windows are still visible today.

Plymouth's huge yet little-known memorial to the Pilgrims.

The phrase "the shot heard around the world" was coined after a skirmish at this bridge.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

Experience the hysteria of a 17th century witch hunt through goofy reenactments and wax dummies that should probably be burned at the stake.

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

The only structure left with direct ties to the Salem witchcraft trials of 1692.