This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Colloquially known as “piss alley,” this narrow street filled with tiny bars and barbecue stands looks like it was pulled straight out of “Blade Runner.”

Paris' linguistic guide to the international language of, yes, love.

A Jenga-style cylindrical tower of books that appears to go on forever.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

Elevated freight railway turned wildly successful urban park.

Eighty million natural history specimens call this gargantuan museum home.

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

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

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

A magical place that lets you play in and explore the world of Studio Ghibli.

A crumbling hospital from the 1850s on Roosevelt Island.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

One of downtown Berlin's last reminders of its Communist past.

There are ongoing efforts to preserve this village, the best known work of Egyptian architect Hasan Fathy.

One of its engravings is believed to be among the first representations of medical and surgical instruments.

The largest known Ancient Egyptian obelisk.

A network of ancient Egyptian tombs built into the cliff face along the Nile.

Inside this 3,500-year-old tomb are remarkable ancient Egyptian paintings of African wildlife.

This unassuming tree stump reportedly traces its roots to the famous pharaoh queen's reign.

The city-sized home palace of one of ancient Egypt's most powerful rulers gives us a rare look into the lives of the epoch's rulers.

Standing atop 2nd-century Roman ruins, this church is one of the oldest and most iconic in Old Cairo.