A little slice of Japan and its aesthetics in London's Holland Park.

Hidden beneath the streets of London is a secret subway that only carried mail.

This nondescript building was the birthplace of Morris cars.

Site of the first hot air balloon flight conducted by the first English balloonist.

The spot where Oxford garnered its name was also home to a medieval philosopher and includes a house covered in statues.

A hidden plaque is the only reminder of the lost palace where two storied English kings were born.

The beautiful non-repeating pattern honors the Oxford professor who discovered it.

Legend says this public grazing area hasn't been plowed for thousands of years.

The spot where three Protestant clergymen were burned at the stake during the reign of "Bloody Mary."

This hidden 13th-century tavern room has a few Shakespearean connections.

This Norman castle was once the site of a Victorian-era prison, and now exists as a luxury hotel.

Once one of the largest rooms full of books in the world, this bookstore basement is still a treat for bibliophiles.

The fantastic charm of England's oldest botanical garden has made it a place of writerly inspiration for centuries.

The names Lúthien and Beren can be found inscribed on the shared grave of the famous writer and his beloved wife and muse.

The first mosque in the world to receive electricity.

Celebrated example of Ottoman architecture that also served as a site for brutal massacres.

This museum preserves the hand-dug tunnel that kept Sarajevo afloat during the Serbian siege.

The big toe of this towering monument to a Croatian national hero is worn from years of superstitious rubbing.

A wonderfully strange collection of 500+ stuffed frogs doing people things.

A former bank seized as a sniper vantage point during the Bosnian War is now a secret graffiti art gallery.

Bridge that died in war and was resurected.

A number of craters left by fatal mortar strikes have been filled with red resin to remember those lost during the Siege of Sarajevo.

Inat Kuća, or "House of Spite," is more than just an oddly named restaurant.

Oriental bazaar in the heart of Sarajevo.