This mesmerizing kinetic sculpture blossoms endlessly in the breeze.

City law dictates that this mountaintop cathedral containing the heart of a saint is to remain the tallest building in town.

This historic Canadian jail was once the longest operating prison in the country and is now open for people to incarcerate themselves.

Train tunnel running underneath Quebec City.

This underground power plant looks more like a super-villian's lair than a public work.

This abandoned fishing village may or may not be haunted.

A unique configuration of blown glass can be found inside this hotel lobby.

This indoor ski resort has a mountain contained inside a mall.

This futuristic building is yet another architectural wonder in Dubai.

Standing atop 2nd-century Roman ruins, this church is one of the oldest and most iconic in Old Cairo.

Hundreds of thousands of ancient documents offer a unique glimpse into Jewish life in Cairo.

A preserved oasis with traditional Andalusian-style architecture and beautiful views of the Nile.

In Egypt's expanding metro area, many of the neighbors are dead.

A recently-abandoned international exhibition center.

Roman ruins, natural methane fires and a lovely beach.

This arch granting triumphal entrance into Antalya was designed to honor the emperor's visit.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

A fountain standing as a testament to a doomed alliance.

Quite possibly the oldest love poem known to humankind.

Turkish adventurer antiques in the heart of the Grand Bazaar.

This gem is often wrongly overshadowed by the larger, newer Metropolis church in Athens.

One of the best collections of Byzantine art housed in a magnificent, 19th-century neoclassical home.

Where commuters walk through remnants of an ancient Greek necropolis.

A somber memorial at the site where hundreds of prisoners and civilians were executed in the aftermath of World War II.