Pilgrimage site for star-crossed lovers.

As its grandiose name implies, this wooden dome is unsurpassed in size.

A fantastic castle rumored to be the birthplace of King Arthur.

The most loyal of little dogs, or a Victorian era publicity stunt?

Recently restored menagerie of Victorian-era beasts.

A harem-inspired Moorish fantasy design in a Victorian-era Welsh castle.

The headquarters of a secretive order is also a beautifully-designed park.

Go inside to really appreciate this 500-year-old technological masterpiece.

Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.

An underground city of salt.

Famously misunderstood wonder of the ancient world

360° views of the city plus five floors of optical illusions and hands-on science.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

Catacombs turned marketplace.

A historic presidential getaway on the continental United States' southernmost island.

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

There must be a pun in this haystack somewhere...

Stay in the one time home to one of Scotland's most notorious gentleman's sex clubs.

Try not to get slimed in Tribeca.

Ancient snack bar of the Roman Empire re-opened.

Mysterious 500-year-old tapestries depict a unicorn hunt.

Baroque celebration of the end of the Great Plague of Vienna.

Real bones which are said to have belonged to a Polish dragon.

Gaze upon chocolate sculptures depicting everything from chariot races to Gaudí's famous church at this shrine to sweets.