All of Chicago's wood-paved streets are long gone but two alleys remain.

The site of the first couple's first kiss is commemorated by the most adorable presidential monument ever.

A lush green oasis in the middle of Chicago.

Bird dung painted this huge boulder which in turn inspired the name of a city.

The mountaintop wind turbine boasts a viewing deck — and a fair share of controversy.

An island said to shake with the current.

The large fjord lake is thought to be the home of "Ogopogo," a giant sea serpent.

From mining complex to industrial exhibition, this museum once played a major part in the X-Files.

A renegade art installation in a small Vancouver park is now officially sanctioned by the City Parks Department.

Locals transformed this Canadian evergreen into a secret hangout with spectacular views of Vancouver's skyline.

Defying all odds, this lonely little tree found a home on a log sticking out of a Canadian lake.

An old world fairytale-land with over 350 fairy folk figurines hidden amongst 800 year old cedars.

Railways may have forged this quintet of lovely tunnels, but now they are open to hikers.

This beautiful deer park was built so King Charles I and his court could go hunting while escaping a deadly plague outbreak.

Never actually a tree at all, this spot was the site of London's public hangings for nearly 600 years.

This religious museum resides in a church crypt next to the founder's house.

A little slice of Japan and its aesthetics in London's Holland Park.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

This museum inside a museum tells the story of London's timepieces.

Originally built for London’s cab drivers, this bright green hut now serves anyone a hot drink or meal.

The taxidermied remains of a once-great parrot.

The last four extravagant street signs of London's historic banking street.

A museum wholly devoted to juvenescence.

The remains of an ancient Roman teenager are memorialized at the base of a modern London landmark.