An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

Hidden beneath the streets of London is a secret subway that only carried mail.

A kaleidoscopic warehouse-maze of handmade neon signs.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

South Philadelphia is home to Keith Haring's only surviving in situ collaborative public mural.

This beloved marketplace mascot poops money and grants good luck.

This ancient Egyptian obelisk still bears the wounds of World War I.

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

This forgotten building was one of the few Philadelphia-area breweries to survive Prohibition.

Enjoy a slice while browsing the world's largest collection of pizza memorabilia.

A tour de force of a fountain, memorializing a man who loved fountains more than anything else.

A daily replay of the experiment that proved the rotation of the Earth.

Erected in 1697 this Philadelphia bridge is the oldest surviving roadway bridge and perhaps the oldest stone bridge in the United States.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

Ant sculptures march up the side of what used to be an iconic spot in punk rock lore.

The oldest surviving botanic garden in the United States.

A clone-tree in Washington Square Park sprung from seeds that went to the Moon and back.

The first partially complete dinosaur skeleton was discovered here, forever changing the world's view of the ruling reptiles.

A charming remnant of 19th-century fishing towns sits on Michigan’s Leelanau Peninsula.

The fake World Cup prize was secretly created after the first one was stolen in 1966.

An abandoned canal route lies hidden under the streets of Manchester.

A tiny, heartwarming piece of art hiding in plain sight.

Manchester salvaged this sculpture of the adopted Mancunian when it was no longer wanted in Ukraine.

A hunk of prehistoric lava rests amid the Gothic architecture of a campus quad.