In Hong Kong, a fairytale flower tunnel is hidden within the gardens of a public housing complex.

Taoism, Buddhist and Confucianism are all represented in this temple that claims to answer anyone's wishes.

The longest cutting on the M62 contains some surprises—though it's best to leave the motorway to appreciate them.

How did a 2,000-year-old Roman column find its way to a Chicago park?

A long lost multi-cultural music venue used to reside in the bottom floor of Chicago's Flat Iron Building.

Landmark Chicago building narrowly avoided destruction.

A 400-foot-tall tall map of Chicago makes this once-ignored building stand out.

Where dioramas can follow you home.

Where old school Polish Chicago and young hipster Chicago live side by side.

Where Cusack's record store from the film "High Fidelity" was located.

Combination beer garden and music venue in the heart of Wicker Park.

One-of-a-kind preserved ruins of an abandoned 1880s church in Chicago's Pilsen neighborhood.

This surprising gem is a world-class archeological museum hidden at the University of Chicago.

Built to house a chapter of the Knights Templar, this grandiose building is a relic of Freemasonry in Chicago a century ago.

This historic hotel invented the chocolate brownie.

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

A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

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

Staves, storm-calling, and of course, necropants.

On the grounds of a hospital in Ghana, a legendary sword said to have been plunged into the earth hundreds of years ago.

Stuck in a bygone era, the oldest subterranean shopping street in Japan hides beneath the popular Asakusa district of Tokyo.

Hidden in the garden of physicist Erwin Schrödinger's house is a life-size figure of a cat from his famous thought experiment.

The oldest hotel in the world has been operated by the same family for over 1,300 years, even catering to samurai.

It houses the remains of a 17th-century version of the Titanic.