Statue dedicated to the star of an old television show.

The commemorative stone column conceals a secret laboratory.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

Hear the quietest sound from across the dome.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

The center of the only hemisphere that awards visitors with a commemorative coin.

An acoustic anomaly with a mysterious cause.

A museum cafe showcases Native American dishes and indigenous ingredients from across the Western Hemisphere.

Once at the center of U.S. finance, the historic Trading Room was meticulously recreated piece by piece and rebuilt in the Art Institute.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

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

The dishes at this restaurant by The Sioux Chef celebrate indigenous heritage.

A Borgesian work of art that may blur the line between fiction and reality a little too convincingly.

The only arched bridge made of stone on the entire Mississippi River.

When flour explodes, it's not a pretty sight.

20,000 pieces in a Frank Gehry-designed building.

Thousands of pieces of art have been carved into the rock at the site of an ancient volcanic eruption.

Eat like pre-Columbian Native Americans in this New Mexico restaurant within the Indian Pueblo Cultural Center.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.