The abandoned funicular tunnel was a secret base for the BBC during World War II.

Franciscan monks created a facsimile of the Holy Land for North Americans who couldn’t afford the trip overseas.

Started nearly 100 years ago, this science experiment just keeps on going, ever so slowly.

The Australian terminal of the Pacific Cable that linked the continent to North America.

The magazine keeps a perfectly groomed display garden for its photo shoots.

China’s breathtaking futuristic library is lined floor to ceiling with fake books.

Mirrored floors and arched shelves create the illusion of an infinite tunnel of books.

The architect of this fanciful complex called it an "oasis for humanity and nature in a sea of rational houses."

There's a 12-foot-tall replica of the Washington Monument hidden under a manhole nearby.

Have fun at the world's first Buddhist waterslide park.

The largest open-air contemporary art center in Latin America is a unique experience in the Atlantic Forest.

A room in New York City that contains 250 cubic yards of dirt worth a million dollars.

The roadway bend where highway painters practice their craft looks like expressionist art.

A mesmerizing disco ball-like sculpture along the Sacramento River Walk.

The eclectic home of a leading Turkish architect is a gorgeous piece of eye candy.

Ancient structures used to make and preserve ice in the deserts of Persia.

A Moroccan getaway in the mountain range that plays the Himalayas' stunt double.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

This elaborate estate contains a stunning marble aviary, a sunken conservatory, and a magnificent music room with a two-story pipe organ.

A home built with marble tombstones from the graves of 2,200 Union soldiers buried in a Virginia cemetery.

The first declared National Monument in the United States.

The world's largest pineapple building honors Bathurst's favorite fruit.

One of the earliest bowling lanes in the U.S. doubled as a sewing school during a time when women had little job opportunity.

One of only two places in the world where two rivers cross each other without the waters mixing.