Architectural Oddities

This unusually shaped fortress houses a blend of centuries-old frescoes and modern art.

Though the original building has been demolished, these massive bronze doors were saved.

This tall and trim architectural oddity is one of the skinniest buildings in San Francisco.

This modernist church's massive sci-fi dome may be one of Latin America's largest.

The busy transport hub is home to the tallest airport slide in the world.

This exquisite example of early colonial architecture remains unfinished almost 500 years after construction began.

An otherworldly musical haven in The Big Easy.

The surviving remnants of a destroyed medieval church now stand in a public park.

The Cycladic architecture makes this Athens neighborhood feel like an island paradise hidden in the shadow of the Acropolis.

The grounds of this former dairy hacienda now contain an entire town inspired by Tuscany, Italy.

A tiny replica of the iconic London landmark hides on the side of the steel structure.

The highest pedestrian bridge in Singapore looks like a series of undulating waves rising between two public parks.

It's a mystery how these curious columns wound up in an Edinburgh suburb.

“It's the quality” (but probably also the drive-through donut tunnel) that has attracted diners since 1968.

For decades, it has disappeared and reappeared as water levels rise and fall.

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

The underground mall's skylights look like they could be part of a spaceship.

No building in the world leans as far as the so-called “Leaning Tower of Abu Dhabi.”