Fine dining 20 feet below the surface in the Indian Ocean.

A little stop along the Texas highway where Rock Hudson, Elizabeth Taylor, and James Dean stayed while shooting the 1955 film "Giant."

A Prada store in the West Texas desert that is never open for business.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

This shining multicolored metro station deep under Naples is said to be the most beautiful in Europe.

The land is home to swimming ponies and a legendary 18th-century treasure.

See some of the world's greatest racing horses at this idyllic thoroughbred breeding facility and garden complex.

A private Las Vegas horse ranch adorned with whimsical artwork.

The granddaddy of English geoglyphs dates back to the late Bronze Age.

The NBA player's elaborate former home is now a ghost of its old glory.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

A rooftop restaurant hides in plain sight atop Vienna's Palace of Justice.

The Victorian-era greenhouse is stuffed with tropical plants, and open 365 days a year.

This striking royal residence is the largest Renaissance-style castle in Scandinavia.

Dine amidst exotic plants at this former royal greenhouse.

Old Danish castle immortalized in Shakespeare's Hamlet.

A spherical "micro-nation" in the heart of Vienna.

This Austrian museum celebrates the work of famous forgers and their inimitable imitations.

The topiary maze at the Habsburg hunting lodge.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

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

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