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

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

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

An artist's cute bronze subway sculptures belie his violent artistic past.

Red frames showcase remnants of one of New York's original subway stations.

Elevated freight railway turned wildly successful urban park.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

The world's most important buildings shrunk to a tiny size.

This series of underground chambers contains Europe's largest subterranean lake that is slowly drained each day.

Austria's ultra-modern art museum looks like Cthulhu's giant alien heart.

This African beach is home to thousands of rare mainland penguins that are known for their annoying voice.

Formerly known as the Malay Quarter, Bo Kaap is a colorfully-painted suburb located in the “Mother City” of South Africa.

These concrete domes were installed on an Icelandic bluff to honor a very specific musical tradion.

A formerly glacier-tipped volcano that inspired none other than Jules Verne.

The most powerful waterfall in all of Europe.

Walk in the footsteps of the gods and straddle two tectonic plates.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

A modern Nordic Pompeii on the Icelandic island of Heimaey.

Iceland's "Smoky Valley" is a beautiful river that is shrouded in a constant cover of steam clouds.

A lonely beacon, precariously perched atop a remote sliver of rock.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

This stunning concert hall has become a symbol of Iceland's national recovery.