This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

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

G.V. Black, the Father of Modern Dentistry, keeps an eternal eye on Chicagoan’s teeth from his perch in Lincoln Park.

This narrow street is packed with street vendors and bars selling chicha.

Located close to a movie studio lot, this restaurant has a long history of star-studded patronage.

This historic Chinese church was relocated and revived as a museum that preserves and celebrates Chinese art, history, and culture.

This bridge over D.C.'s Rock Creek Park is sometimes called the "Buffalo Bridge" because of its four buffalo sculptures, which were cast from a single piece of bronze.

A hidden courtyard houses early 20th-century plaster masterpieces.

This 19th-century Hamptons windmill was once home to modernist painter Agnes Pelton.

A formerly abandoned mental institute, now back in business.

A millionaire's abandoned swimming pool from the gilded age of one of America's most distinguished families.

On Hilton Head Island this bronze King of the Sea rules all things briny—and lets you know if you’re late for lunch.

A futuristic-looking beach house built for the owner of a snack food brand.

Once the grandest synagogue in medieval Spain, it now stands as a memorial of the 15th-century Jewish exile.

These magnificent city walls rise from the barren sun-baked Spanish plains like something straight out of a fairytale.

This magnificent castle grew from a small Moorish fortress, and reportedly inspired two iconic Disney castles.

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

The fragmented remains of a massive public bath connected to the city's water supply.

The bank that helped fund the Mexican-American War and the purchase of Alaska met its downfall after helping Augusto Pinochet launder money.

These two K-9 memorials commemorate the sister cities of Edinburgh and San Diego.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.