This floating garden in the sky is straight out of a fairy tale, but the real thing is nothing short of magical.

A medieval setting reimagined into a unique art alley.

Hundreds of prehistoric stones, arranged in perfect lines in a French field.

Stone Age solar temple is aligned with the sun on each equinox and solstice.

Ozymandias’ time-keeping temple.

The largest tiger reserve in India is a vast expanse dotted with ancient ruins of Nagarjuna Viswa Vidyalayam.

These Nubian pyramids are strange and unique, even by pyramid standards.

More gold than anywhere else, ever.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

Once considered one of the country's finest motte and bailey castles.

This large, circular tomb is the final resting place of the first emperor of Rome.

Beirut's thinnest building was the result of feuding brothers.

The oldest arboretum on the Dalmatian coast doubles as the gardens of Kings Landing in "Game of Thrones."

This eerie abandoned building with a dark history is said to be one of the most haunted places in the Philippines.

An ode to Japanese artist Hokusai, with a bit of a comical twist.

The last occupied troglodyte dwellings in England weren't abandoned until the 1960s.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

A church made of steel.

The doodles of a genius line the walls of a secret room under the Medici Chapel, where they were hidden for nearly 500 years.

A former reservoir that was only recently discovered after more than 60 years of disuse.

Heralded as the oldest statue in London.

A glass display case holds the document that ended the Second World War—which one person signed on the wrong line.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

It took 28 years to build this massive statue of the Hindu god Vishnu riding a mythical bird.