Once the largest public hospital for the mentally ill was also surrounded by controversy.

Run by a eugenics advocate, this aging institution conducted secret radiation experiments sponsored by Quaker Oats.

The classic Christmas carol was written at this Massachusetts tavern in 1850.

This rare polygonal meeting house is rumored to be built in a circle so that the devil has nowhere to hide.

Cryptid lake monster honored with its own monument.

A gardener's enduring labor of love is spread throughout a small Vermont town.

Stand at the center of this lakefront sundial, and you'll become part of the timepiece.

One car at a time please.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

This 38-drawer structure claims the superlative title, but it isn't the world's only giant filing cabinet.

An alley way dedicated to graffiti and street art is a constantly changing street gallery.

This peaceful Massachusetts graveyard was one of the first "garden-style" cemeteries in America.

An enormous park-like oasis, full of famous Chicagoans' graves.

A haunting statue called "Eternal Silence" has quite the reputation among visitors with active imaginations.

Roses and other fascinating flora fill this garden built to commemorate Britain's immortal Bard.

A historic beacon built in the aftermath of the worst maritime disaster on the Great Lakes.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

A historic bridge with a lovely acoustic anomaly.

Site of a famous 19th-century transcendentalist utopian community, now abandoned.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

Iceland's tribute to its thankless civil servants.

Inside this Icelandic greenhouse, geothermal energy keeps tomatoes warm and growing.