The courtyard of this small Marinid madrasa is a dazzling example of intricate Islamic architecture.

Once an indicator of social class, the color blue has come to define this city on the edge of the Thar Desert.

Fifteen Jodhpur queens left their handprints before going to their fiery death.

Legend has it a commoner volunteered to be buried alive in the foundation so that the great fortress could be built.

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.

A giant bronze coil of feces is both a tribute to doggie defecation and a reminder to pick it up.

America's greatest forgotten garden and the former stomping grounds of Son of Sam.

The colonial city's social history is reflected in its fanciful door knockers.

This futuristic airport terminal was abandoned for decades before reopening as a hotel—with a vintage plane of its own parked out back.

A flamboyantly decorated bridge signals diversity and fellowship at the entry to Indianapolis' Broad Ripple Village.

The famous artist couple lived and worked here, in two different houses separated by a bridge.

Frida Kahlo's childhood home, now a museum of her life and works.

Superstitious? Discover the witchy side of Mexico through its largest esoteric market.

An exotic wildlife habitat right off The Strip.

Illegal drag racing two stories beneath Chicago’s streets.

You can take a class, browse the library, or visit the lavish lair of an international men's humor society.

The dramatic upward-curving roof is one of the most iconic examples of Googie architecture that still stands today.

This "synagogue" is not what it seems to be.

Constructed in the 1920s, this former pencil factory is now an office building.

The walls of the iconic dome are hollow and have a secret stairway.

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