One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

A hidden treasure in London with a rich medieval history, and the resting place of many luminaries.

The curious underground history of keeping Paris clean.

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

Ride the subways of yesteryear.

The highest point in the state of New Hampshire, and while unlikely "the worst weather in the world," it sure seems that way to hikers.

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

A Harvard-area eatery preserves the uncovered tiles of its century-old predecessor.

One of the last remaining movie theatres in the country that features a rear-projection system.

This bridge was the birthplace of a unit of measurement based on a fraternity joke.

The headquarters of one of the world’s longest-running humor magazines bears a noticeable resemblance to a head wearing a Prussian helmet.

This massive World War II calculator hearkens back to the days when "computer" was a job title.

This tiny, painted door at the base of a tree stump has been a fixture of the Harvard University campus for decades.

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

The headquarters of the famous Yale society.

All unmarked mute swans on the Thames are owned by the Queen per a tradition that began in the 12th century.

Amidst the bustling streets of Dublin, there is a hushed garden that is dedicated to "All those who gave their lives in the cause of Irish Freedom."

The modern birthplace of Irish freedom.

This is the largest cemetery in Ireland and the first cemetery museum in the world.

One of Ireland's most infamous prisons for rebels including men, women and children.

This cemetery overlooking the Benbulben rock formation is the final resting place of one of Ireland's most beloved poets.

The oldest pub in Ireland may also be the oldest surviving bar in the entire world.