The beautiful baroque library of the Hapsburg empire.

The celebrated eyesore created by starry-eyed sweethearts.

It houses the remains of a 17th-century version of the Titanic.

Copenhagen's celebrated theme park and gardens.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

The housing complex served as an anti-fascist fortress during the Austrian Civil War.

A rooftop restaurant hides in plain sight atop Vienna's Palace of Justice.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

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

Op-art architecture designed for happiness.

One of Vietnam's most iconic landmarks was built by Japanese traders and is now in danger of sinking.

Vietnam's largest Buddha statue depicts a female sage.

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

A nightmare for the claustrophobic lies hidden in Southeast Asia.

An extravagant monument to an extravagantly unpopular Emperor.

This bridge is embedded with a giant steel dragon that breathes fire from its mouth.

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

A ring of soy sauce bottle bases decorate an important Singaporean landmark.

This statue once earned the distinction as one of the "Three Major Disappointments of the World."

A historical convent known for taking in bad luck babies left on its doorstep is now an upscale shopping center.

This $62 million dollar temple was erected to house one little dental fragment of religious history.

Singapore's landscaping project is home to 18 incredible Supertrees.