A kaleidoscopic warehouse-maze of handmade neon signs.

The last remaining example of the boatmen's perches that once dotted the south bank of the Thames.

19th-century scientists would make the pilgrimage here to verify the precision of their measuring sticks.

This home on a quiet suburban street is completely covered with vibrant mosaics.

This museum tucked below a charming cafe gives a brief snapshot of photographic history.

Eclectic final resting place of the controversial explorer.

The largest of London's subterranean rivers and once a mad, bad center of London life.

Artists and musicians now rule over this former rail station.

Banksy gives themself artistic license with this piece of London street art.

One of the world's largest collections of pathological specimens.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

A historic house left in "dramatic still life."

The site of London's first coffee house has been serving refreshments of one kind or another for 360 years.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

A full-scale sculpture of a mermaid and baby grand piano hidden underwater by David Copperfield.

Former meatpacking facility turned vertical farm and sustainable business complex.

A band of aerialists and circus performers putting on incredible shows in East Williamsburg.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

Possible relics of the ancient Roman city are hidden in this restaurant's façade.

Manhattan's lighthouse, erected at the insistence of the unsinkable Molly Brown.

A popular European tradition makes its way to the states on one of America's most famous bridges.

Blighted Irish field and the ruins of a 19th-century cottage on the edge of urban Manhattan.

Beautiful mosaics cover the first stations opened on New York City's newest subway line.

Behind a bodega is a small museum of relics and ephemera showcasing the history of New York.