One of only three fountains created by the iconic architect Friedensreich Hundertwasser.

This historic Victorian mansion is allegedly so haunted that a signed waiver is required to enter.

This giant Massachusetts sycamore is said to hold the dubious distinction of being the "widest tree East of the Mississippi!"

An old trolley bridge was converted into a breathtaking garden bursting with colorful flowers.

A stunning garden filled with fantastical environmental folk art and sculptures.

Wander the sprawling living museum on the site of one of a 16th-century community.

Take a step inside the picturesque studio of America’s most renowned sculptor.

The former residence of Elizabeth “Mumbet” Freeman, an enslaved African-American woman who successfully sued for her freedom.

A single room pays homage to the prodigious achievements of the 30th President of the United States.

An abandoned gun-funded 19th century utopia.

A miniature village lies nearly forgotten in the forest by the side of a major highway.

A jewel of early electric boosterism once again charms Connecticut's historic "Hat City."

This historic railway museum may have lost its passengers but not its love for trains.

A statue commemorating a 16-year old girl's nighttime ride to raise a militia against attacking British troops.

A castle inspired by medieval architecture is hidden in the woods of Connecticut.

One of America's oldest private membership libraries was long one of New Haven's best kept secrets.

An archival collection of over 2,200 case studies which includes human brain specimens and tumor specimens.

The mark of the Devil's horns on a marble column in Milan.

The secret medieval communication system will whisk your words above the noise of the crowd.

Small on the outside, big on the inside, this church is an astonishing act of visual deception.

"The prettiest love letters in the world" ... or so said Lord Byron.

Long-abandoned art nouveau baths beneath Milan's Piazza Oberdan.

A large statue of Pope Gregory XIII in Bologna was disguised as Saint Petronius to avoid destruction.

A masterpiece of modern architecture that caused quite a stir in Paris, recreated in Bologna half a century later.