Vienna's underworld of tunnels and subterranean rivers made an iconic appearance in a 1949 Orson Welles film.

In the middle of a Vienna square, Roman ruins dating back some 2,000 years are on display.

Baroque celebration of the end of the Great Plague of Vienna.

This Melbourne bank has unique Gothic-style architectural features and is one of the most majestic operating bank branches in the world.

This giant, granite purse is one of Melbourne's most unique and distinctive pieces of public art.

This historic Melbourne bullet factory is fully encased in a massive glass and steel cone.

Every hour a secret compartment drops from this giant pocket watch, revealing a lovely surprise.

A friendly monster lurks outside the State Library Victoria.

Children's author May Gibbs's beloved stories about the tiny, human-like "Gumnut Babies" are immortalized in bronze.

The bullet-banged DIY suit of armour belonging to Australia’s most famous outlaw.

Commemorating the 19th-century labor movement in Australia.

Once housing children next to hardened criminals this historic jail once displayed Ned Kelly's skull until it was stolen.

The bones of this aquatic dinosaur turned to opal over the centuries and the beast's remains were almost sold as jewelry.

Native Australian lizards inhabit this garden celebrating Sydney and its sister city in China.

These mythological giants take time out of their busy day guarding a Victorian market to let you know what time it is.

A white Buddhist temple with a golden restroom.

An extravagant monument to an extravagantly unpopular Emperor.

Vietnam's feral abandoned water park offers access to a post-apocalyptic funscape, now with fewer crocodiles.

Giant pagoda houses the car that drove Thích Quảng Đức to his death by self-immolation.

Monument to a brutal, ineffectual US bombing campaign and a sobering reminder of the human cost of the Vietnam War.

Ho Chi Minh's perfectly preserved body has been on display here since 1975.

Under Hanoi’s medieval citadel sits a secret military headquarters from the final years of the Vietnam War.

Twice a day a speeding train passes only inches from the homes of this residential neighborhood.

These crumbling towers are some of the last remnants of a centuries-old Vietnamese culture.