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

A kaleidoscopic warehouse-maze of handmade neon signs.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

A nun spent 16 years painting the stunning Celtic mural that covers the interior of this WWI memorial.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

Three generations of intrepid collectors display their curious artifacts in a homemade museum right next to the caves they discovered.

A museum dedicated to the history and art of staying clean.

This set of hot springs also comes with fantastic views.

The world's first nuclear power plant is open to visitors looking to role-play a meltdown.

Home to a timed geyser created by complete accident.

These black pillars of volcanic basalt seem to call mountain climbers with an unbreakable siren song.

This ancient cave is home to a museum, bar, and is filled with fluorescent minerals.

A sculpture for the sun and stars, created by Nancy Holt.

An earthwork sculpture built by Robert Smithson in the Great Salt Lake only reemerges during drought.

A self-made museum in Queens, New York continues to display the work of a sculptor known for paving his own way.

A hidey-hole sandwiched between cellphone, DVD, and jewelry stores features Tibetan delights.

Have a steam and some blini at this cafe in a century-old bathhouse.

A hyper-luxurious, 12,000- square foot home might be buried beneath Queens, still waiting to protect you from nuclear missiles.

Though its celestial ceiling is impressive, the true star is the vast collection of French books.

Unique antiquarian shop specializing in globes, maps, and prints.

Order scoops of pandan, lychee, and black sesame at this family-run institution.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

An Irish Memorial commemorating those who perished due to potato blight.