The trials and tribulations of marking Poe's grave.

The Stonehenge of Wales is one of the grandest neolithic dolmens still in existence.

An unusual round church in London with a Templar past.

This historic Rhode Island mini-cemetery features a number of headstones run through with mysterious holes.

The ancient tomb acts as a calendar that keeps perfect time.

A 19th century library favored by Edgar Allan Poe and H.P. Lovecraft, known by locals as "the Ath."

Berkeley Hot Springs presents to you "the only outdoor monument to presidential bathing."

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

Historic Hull Street was actually the first street with a proper name in the Boston area.

A centuries-old church stands as a testament to Boston's "father of architecture."

One of the indelible moments of the American Revolution took place at this location.

Tragedy on Little Brewster Island memorialized.

Rodin's famous depiction of Dante's 'Inferno', amidst a sculpture garden of many of his other works.

This steep cable railway has been hoisting passengers in the heart of Québec City for over a century.

A 400-square foot model of historic Quebec is the playing field for a state of the art light and sound show.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

Ancient pueblos built into the base of a natural canyon wall.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

A small granite block at this monument's base is the only part of Lincoln's Tomb outside of Illinois.

A preserved 18th century homestead in Western Pennsylvania marks the spot where the Whiskey Rebellion began.

"Where the ducks walk on fish."

A model of a dinosaur that was named for Andrew Carnegie stands outside the museum that also bears his name.