
Alternative Central Park —
Imagine if Central Park looked like this. Said to be inspired by the gardens of the Palace of Versailles in France, John J Rink's designs have been brought to life in a series of renderings commissioned by travel insurance firm Budget Direct.

Alternative Central Park —
Swirled topiary takes up almost the entirety of the park -- meaning minimal open space. There's a reservoir in the heart of the park next to a lake, and a museum, too.

Alternative Central Park —
Rink submitted his ideas to a design competition for the park in the 19th century. He lost to architect Frederick Law Olmsted and Calvert Vaux, whose designs have become an iconic part of New York City.

Alternative Central Park —
It would have been impossible to realize Rink's designs, says Sara Cedar Miller, a historian who works at the Central Park Conservancy, because they didn't take into account the physical landscape of the site.

Alternative Central Park —
Rink's designs would have cost "millions and millions" because they required creating a flat surface to build his French garden-inspired vision on, says Cedar Miller.

Alternative Central Park —
Today, Rink's drawings are kept at the New York Historical Society.

Real Central Park —
Here's what the real Central Park looks like.

Alternative Arc de Triomphe —
Instead of an imposing single arch, the Arc de Triomphe in Paris could have been an elephant statue. A rendering of the design, commissioned by financial services company On Stride, is shown here.

Alternative Arc de Triomphe —
Designed by Charles Ribart in 1758, the "elephant house" design featured three stories inside the structure.

Real Arc de Triomphe —
What the real Arc de Triomphe looks like today.

Alternative Tower Bridge —
Here's an avant-garde design for Tower Bridge in London that wouldn't look out of place in a modern-day architectural firm. The idea came from architect F J Palmer in 1877.

Real Tower Bridge —
Architect Horace Jones' famous gothic-style bridge was built instead, and has become an iconic London landmark.

Alternative Sydney Opera House —
The then-conductor of the Sydney Symphony Orchestra Eugene Aynsley Goossens wanted a functional opera house.