This castle was established by the 4th Duke of Montrose and is connected to the Buchanan Clan.

This tangled English forest looks like something right out of a fairytale.

This hidden Art Nouveau courtyard is an opulent feast for the eyes.

An old world fairytale-land with over 350 fairy folk figurines hidden amongst 800 year old cedars.

This spa theme park lets its guests take a dip in pools of coffee, wine, or ramen broth.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

Monasteries on rock pillars, once accessible only by frayed ropes.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

Tubing through a cave lit with glowworms is a magical underground experience.

The second oldest continuously operating bar in Louisiana.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

The scuba diving training facility was named for the steam that rises from the cave's chimney.

This natural wonder drops 16 stories straight down through rare flora and streaming waterfalls.

The fountain marks the area where hundreds of accused witches were burned at the stake.

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the century.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

Hanging over one of Japan's "hidden valleys," these vine bridges must be remade every three years.

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

This geothermal hot spring hides beneath a slowly growing mineral dome.

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

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

Eighty million natural history specimens call this gargantuan museum home.

If drivers cross the rumble strip on this stretch of Route 66 at just the right speed it plays "America the Beautiful."