A park with one large cat sculpture and 15 smaller ones, all painted by different Colombian artists.

This Roman archeological site is hidden amid a 1930s housing estate.

This fortress dates back to the 6th century and is also the site of a controversial abandoned restoration project.

This lonesome Monterey cypress has survived centuries of wind, salt, and at least one attempt at arson.

The memorial gravesite of the young composer of China's national anthem.

Legend says if this neo-Gothic basilica is ever officially completed, the world will come to an end.

It took 160 years to complete the most ornate church in Ecuador.

This spaceship sculpture in the middle of the Slovakian capital looks like it just crash-landed.

This Bogotá museum houses the world's largest collection of pre-Columbian gold relics.

The world's tallest circular building is loaded with symbolism, but many just see a big donut.

Air-raid tunnels hidden beneath this opulent hotel provided shelter and an escape route—and one of the world's longest slides.

An imperial art museum offers edible versions of its most treasured displays in an on-site fine-dining restaurant.

Concrete balls on wires constructed to stop train surfing in Indonesia.

Established hundreds of years ago, Gandan remains the premier Buddhist monastery in Ulaanbaatar.

Old Muslim cemetery and resting place of folkloric creatures

Even though some of the buildings date back to the Victorian era, this research institute is still involved in cutting-edge astronomy research.

A memorial for public executions that dates back to the 14th century.

The birthplace of the Japanese idiom "wet clothes" meaning “false accusation."

A significant example of Czech cubist architecture—a style you won't find anywhere else in the world.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

This tree has witnessed nearly 1,000 years of history.

This ancient Corinthian helmet is South Korea’s only national treasure of Western origin.

A retro Yugoslav congress, cultural, and business hall built in the 1970s, with an iconic world clock.

The site of a Japanese traders’ settlement that once thrived in Ayutthaya, if for less than a century.