A flower grows on this giant stone that is said be able to control minds.

Commonly acknowledged as the only public monument to the Devil himself.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

This working class sculpture pounds his hammer all the livelong day.

From a distance, Latin America's first Baha'i Temple looks like an enormous egg perched atop a hill.

A huge, bustling local market in Panama City.

A surrealist timepiece by the artist of melting clocks.

A museum of carnival attractions where you are invited to ride the rides.

Notorious artist squat renovated into legal studios.

Take a cruise with no movement but plenty of style in this one-of-a-kind boat mall.

Teeming with illegal goods and services, this towering maze of vice is also a popular tourist accommodation.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

What looks like a crashed Zeppelin is actually a bright, airy reading room perched atop a modern museum.

A majestic lion statue guards this Parisian botanical garden, and feeds on an unsettling item.

The Sun King's military models, saved from the Louvre.

This banal Parisian entranceway is not what it seems.

A grotto-like lodge decorated with gilded mosaics, rocks and a noisy waterfall was the setting for the most sumptuous pleasure house of 1900s Europe.

This off-limits room in the National Library of France is home to a system of pneumatic tubes, once used to bring books to readers.

The largest medical and anatomical collection in France lies hidden from the public.

Paris' fabled purveyor of exotic taxidermy and natural history curios.

The industrial architecture honors the laborers who brought the Exposition Universelle of 1900 to life.

This crumbling, graffiti-covered mansion sits tantalizingly within reach of the proletariat who frequent a public park.

3/4-scale model of the White House in Atlanta, Georgia.

The beauty of urban decay, hiding some dark secrets.