A 19th-century horse lover's bequest led to the construction of this unique fountain in Chicago.

Inspiration struck on this seat outside the Griffith Park merry-go-round.

The ruins of a once prosperous power station have become a mouldering seaside gem.

Visible from both land and sea.

An abandoned marine theme park has created a difficult experiment in dolphin rewilding.

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

A beautiful hike through national parks, forests and beaches in Western Australia.

An engineering masterpiece, or “Scheme of Madness?”

The oldest observatory in West Australia.

The unfinished final resting place of some of Spain's most prominent politicians.

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

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

This amazing abuela became a diehard metal fan late in life and an icon of Madrid's '80s rock scene.

A whimsical brother of the nearby Fallen Angel statue takes the falling part quite literally.

A "sinister, whimsical, tacky, and really orange" public art installation hidden under a Seattle bridge.

A museum dedicated to the history and exploration of both popular music and science fiction.

A New Zealand communications tower stands as the tallest structure in the Southern Hemisphere.

High winds can make this one scary landing.

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

Though it may look like a businessman's lost luggage, this case suspended under a highway bridge is actually a contemporary art installation.

Unconventional site where the tracks of Zurich tramcars intersect.

A striking 12th-century-style castle built on the edge of a cliff.

This statue pays homage to a group of kids's childhood companion who once called the park home.