Entire apothecaries are on display at this Lisbon museum, which explores the history of medicine.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

Eat the ultimate iteration of Portugal's most beloved pastry.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

Located in the thermoelectric factory that once powered the entire city, this Portuguese museum is shockingly fascinating.

Step back in time at this 19th-century kiosk.

After an Illinois church was struck by lightning and burned down, Frank Lloyd Wright designed this replacement.

The first home and studio that belonged to the famous architect.

The famous author's birthplace is preserved in a town that he once described as narrow-minded.

A bust of the entertainer and politician sits in an alcove at the Palm Springs Airport.

An outdoor sculpture park of giant pink robots and post-apocalyptic Christmas scenes.

Explore the wide world of desert plants at this unique Palm Springs botanical garden.

At the western edge of Palm Springs, a rugged desert canyon trail leads to a waterfall at the base of the San Jacinto Mountains.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

The world’s largest concentrated solar plant generates as many problems as megawatts.

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.

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

Huge abstract sculptures of the Puerto Rican Flag.

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

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

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

A famed artist's inspiring work of peace and tolerance.