"We gonna rock down to Electric Avenue, and then we'll take it higher..."

An architectural oddity hides in plain sight on this iconic London bridge.

A decommissioned military complex that's now a modern industrial park.

Legend says these colorful, invasive residents are the descendants of birds released by Jimi Hendrix.

Sculptor Antony Gormley used chaos theory and fractal growth to design his tallest creation.

The medieval woodcut-style artwork chronicles life in medieval London.

Revel in the Victorian splendor of the world's oldest eating establishment inside a museum.

Drink your espresso at a Victorian-era urinal in this underground-restroom-turned-coffee-bar.

The famous polar explorer stands outside the Royal Geographical Society's headquarters.

The commemorative stone column conceals a secret laboratory.

Its collection includes a broad array of social, geographic, graphic design, and political history.

The most unloved grain elevator in Brooklyn was a “Magnificent Mistake.”

A little lighthouse in New York City, surrounded by mysterious stories of insanity-driven construction.

The iconic Manhattan corner that was once the site of the Beastie Boys' fake clothing store.

This exemplar of modernist architecture is meant to captivate and inspire students of the Cooper Union.

Empty, but not abandoned, this cavernous Brooklyn loading dock was once considered the largest individual building in the world.

The most confusing clock in New York.

This historic "City of the Dead" lies prominently in the center of New Orleans' famous Garden District.

A massive forgotten storehouse from 1913 on the Brooklyn Waterfront has a spectacular view of Brooklyn.

Walk into the 19th century without leaving Brooklyn.

A former insane asylum despised by Nelly Bly and Charles Dickens is now fashionable apartments.

On the Fourth of July this area will transform into a Pompeii-like storm of falling embers and ash.

The first memorial dedicated solely to the Black troops who fought for the Union.

The tunnel under the Capitol Building where Congress takes out its trash.