These docile dragons are ideal inhabitants for the conservatory greenhouses.

Originally meant to hold a statue of King William IV, this support sat empty for years. Today, it hosts a rotating cast of public artwork.

The bridge is a secret gallery of discarded gum that has been transformed into miniature masterpieces.

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

Where condemned pirates met their grisly end at the gallows on the River Thames.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

The television series' iconic giant foot was borrowed from this classical painting.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

A student driver's nightmare.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

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

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

A relatively obscure antihero from the Marvel Comics universe adorns a wall inside Iceland's main airport.

This former farm In northern Iceland is now a museum, where visitors can tour beautifully-preserved turf houses.

This monument to one of the largest science fiction games of all time bears the names of hundreds of thousands of players.

This beautiful, historic church looks like something out of a simpler past.

These enlarged egg sculptures represent the native birds of eastern Iceland.

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

Iceland's largest geothermal mud pool is a little bit haunted and a little bit dangerous.

This black church sits alone among a field of lava rock.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

This elegant arc of a waterfall marks a religious turning point.

Strange rock formations tower above the river that snakes through this enchanting Icelandic canyon.