The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

This historic train station has been converted to a locomotive themed hotel.

A natural history museum with an extensive collection of bird dioramas.

Mai Tais and Navy Grog served up in one of the original tiki bars.

Historic funicular railway, believed to be the shortest railroad in the world.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

FDR hoped to find a cure for polio in this Georgia town's warm springs.

Carved faces add a touch of magic to this island's impressive oak trees.

Civil War soldiers, captains of industry, and paupers all interred on historic grounds.

A museum and doll store featuring a surreal and super sanitized version of where babies come from.

An underground magnet for ever-changing street art.

This massive store is home to an eccentric collection of vintage, retro, and peculiar goods.

A bizarre roadside attraction and the first instance of miniature golf in the world.

A man's home is his castle.

A white oak with property rights.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

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

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

Elevated freight railway turned wildly successful urban park.

Stolen goods adorn the organ at Old North Church.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

The site of Paul Revere's historic two lantern warning.