Palatial mansion estate used in films including "Flowers in the Attic" and "The Witches of Eastwick."

This picturesque abandoned home is rumored to be a spite house.

The only remaining historic maritime signal station in the United States.

Its unique collection details the history of the state's svelte railroads.

Preserving the memory of the narrow railroads that once crisscrossed the state of Maine.

The first "applecore" style lighthouse in Nova Scotia.

An authentic replica of an Asian temple and garden hidden amongst the natural beauty of Hawai'i.

The grand marquee of this abandoned Hawaiian theater remembers the building's elegant past.

Hiding in plane sight.

On Waikīkī Beach, a monument to four extraordinary individuals of dual male and female spirits who brought the healing arts from Tahiti to Hawai'i.

Once the site of the Hawaiian monarchy, this building was originally designed as a palace.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

Eighty million natural history specimens call this gargantuan museum home.

This "life-size" depiction of Mickey Mouse as a half-lobster is both whimsical and a bit creepy, standing guard over the Boston waterfront.

The world's largest piece of copyrighted artwork.

This parking garage was the site of what was - at the time - the largest cash robbery in history.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

Millions of numbers carved in glass represent the tattoos forced upon victims.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

Sacks of potatoes, made of cast stone, mark where the iconic potato sheds once stood along the river.

On a former island, this old fortification once used to protect the Boston Area and started Edgar Allan Poe in his military career.

This massive tea kettle was once a promotional stunt for the Oriental Teashop.

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