A tiny Greek Orthodox church from the Ottoman era hides on a busy city street.

According to legend, this ancient column contains healing properties.

Gladiators once walked this ancient, subterranean passage.

The oldest standing Byzantine church in Athens is tucked within a monastery in the middle of an upscale shopping district.

This small 16th-century church in Athens is almost entirely surrounded by a modern building.

The oldest cemetery of modern-day Athens blends the modern and ancient worlds.

The Cycladic architecture makes this Athens neighborhood feel like an island paradise hidden in the shadow of the Acropolis.

This abandoned shopping arcade has new life as an art installation.

The ruins of an ancient mansion sits in front of and underneath a contemporary art gallery.

After a catastrophic forest fire, a Greek artist transformed scorched tree trunks outside an old sanatorium into this haunting sculpture garden.

This small museum once served as a royal hunting pavilion for King Otto Friedrich Ludwig.

A Byzantine-era church hidden in a wooded area below the Acropolis.

The beloved fantasy novelist is buried near a church containing a whimsical etched glass window full of Narnia favorites.

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

J.R.R Tolkien, C.S. Lewis, and other "Inklings" met at the Oxford pub to discuss the now legendary fantasy stories they were writing.

A letterbox installed specifically for the first editor of the Oxford English Dictionary.

This slice of 1960s Danish modernism does not conform to the Oxford college stereotypes.

The lantern carried by the infamous Guy Fawkes when he was arrested while attempting to blow the houses of Parliament and the King of England to smithereens

A little piece of Oxford's overlooked industrial heritage.

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

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

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

The shop where the girl who inspired the beloved character once bought sweets is now a book-themed commercial curiosity.

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