The highest point on the island known for buildings that touch the sky.

Visit the monolithic tomb of America's most famous general.

A curious fountain that has no water and includes Satan, a crab, and 9 giraffes.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Piano-making empire filled with 200-year-old steam machines still churning out 1,000 instruments a year.

Dr Barnes' $25 billion private collection of art and arboretum.

The maritime museum that boasts the largest nautical library in the western hemisphere.

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

This shifting North Carolina sand dune is an odd little desert surrounded by oceanic forest life.

A forgotten sea village stands silent after hurricanes deemed it obsolete.

This mountaintop lake bubbles and steams in a perpetual boil, thanks to its direct link to the Earth's interior.

A natural tidal swimming pool is ringed by bizarrely artistic lava rock formations.

A tropical paradise once home to space exploration and military installations.

Where commuters walk through remnants of an ancient Greek necropolis.

Giant marble phalluses on the sacred island of antiquity.

A fountain standing as a testament to a doomed alliance.

The tallest hotel in Europe.

Pablo Neruda's custom-built lover's nest was made to remind him of the sea and named after his mistress' hair.

Two large posteriors in one giant statue.

Single runway interrupted by a busy road that cuts across its middle.

A clear blue swimming hole with hidden caves, still unexplored.

The folks at the Devil's Rope Museum want you to get hooked on barbed wire history.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

Locals purchased this abandoned quarry in order to make sure it continues to be overgrown.