A living memorial to the trees London lost during the Great Storm of 1987.

Many famous English poets including Elizabeth Barrett Browning are laid to rest at this Swiss-owned cemetery in Florence.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

The library houses an incredible collection of some of the world's most impressive books and manuscripts.

The lighthouse central to the 1980s horror classic "The Fog" is, in fact, located in one of the foggiest areas of the Pacific Coast.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

One of Oxford's greatest treasures likely belonged to England's legendary King Alfred the Great.

These mysterious Viking chess pieces spent centuries hidden on a remote Scottish island.

You won't find these curiously named passageways anywhere else in England.

One of Amsterdam's narrowest houses is located right across the canal from its widest.

An abandoned 1930s gas station turned bustling neighborhood park.

The walls and streets of the ancient city are peppered with penises.

The bones of two medieval royal lions were discovered at the historic fortress.

L.A.'s oldest operating bowling alley is a beautifully restored homage to its speakeasy days.

A fashion designer's dazzling world of Japanese collectibles is hidden in a warehouse downtown.

This tiny islet has somehow housed an ancient temple, two monasteries, a church, a fortress, and a restaurant.

Buried next to Pompeii, this lesser-known Roman villa was the opulent vacation home of Emperor Nero's wife.

Founded by a high school teacher, this poetry magazine became a center for all things literary.

This peaceful garden is hidden on the grounds of a spiritual organization founded by a pioneer yogi.

Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

The giant statue and its model solar system honor the native Pole who declared that the Earth revolves around the Sun.

Hidden in the courtyard of the Victoria and Albert Museum is a little-known tribute to two celebrity pooches.

The pile of books behind the dignified writer gave the statue a most undignified nickname.

The sole surviving relic of the San Francisco neighborhood cobbled together from old horsecars and streetcars.