The unique collection of gifts includes braids of human hair, a spoon, and a Virgin made of bread.

Once home to an aristocratic family and a workers' organization, this intricately tiled building now houses a chain restaurant.

The remnants of an abandoned, 19th-century gold mill along Aruba's rugged northeastern coast.

These spectacular, symbolic serpents lie within the shadow of the Great Temple.

A disquieting Aztec sculpture displays hundreds of stone skulls representing the victims of human sacrifice.

Museum dedicated to the art of cutting and polishing stones.

This botanical garden outside Chicago boasts an array of more than 300 varieties of lilacs.

The last masonry skyscraper ever built reveals a transitional moment in architectural history.

Once called the "Polish Gold Coast" it is an icon of the neighborhood that bears its same name.

Not to be confused with the iconic New York City skyscraper, this Chicago building is a vibrant hub for artists.

To find the "unicorns of the deep" you've got to go downstairs.

This landmark of the Chicago silent film industry may not be in the picture business anymore but it still stands proudly.

Home to a protest movement, a bombing, and a dramatic change in labor history.

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

Many people don't realize there’s a lot going on in—and below—the world’s tallest triumphal arch.

The only castle in North America to ever house European sovereigns.

Diego Rivera's massive tiled fountain and failed infrastructure project.

Frida Kahlo's childhood home, now a museum of her life and works.

This incredible college library is a visual masterpiece of mosaic art. It also looks kind of like a giant boombox.

Tucked away amongst townhomes lies a restored, early 20th-century tea house and garden, the only remains of a historic estate.

The park that the Chicago Stockyards built.

An antiquated German apothecary on Chicago's North Side.

Despite its name, this fast food museum is actually a replica of the ninth McDonald's store.

A science teacher's dream.