A railway bridge leading nowhere stands lonely in the middle of a meadow.

The old Route 66 town straddling Texas and New Mexico died along with the Main Street of America.

A flooded Mexican cave that hides a river beneath the water.

A small collection of iguana-infested ruins hides amid Cancún's bustling hotel zone.

A recreation of a sign that Charles Dickens used to see on his walk home.

Soon after its unveiling, this giant inverted globe sparked controversy and was vandalized.

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

A quiet, semi-secret square with statues of Mahatma Gandhi, Virginia Woolf, and a conscientious objectors stone.

An unusual ode to the late Irish playwright, complete with a squiggly bust and coffin-shaped bench.

A historic hill of tall tales, with one rather special tree.

These ornate arches show how the course of the River Thames has changed.

The commemorative stone column conceals a secret laboratory.

The Tudor-style cottage in the middle of the square is not quite what it seems.

A memorial to a dog that inspired rioting in the streets of London.

The secret wartime bunker built on the platforms of an abandoned Tube station.

The remains of an ancient Roman teenager are memorialized at the base of a modern London landmark.

One of the greatest movie directors of all time lived and worked in this London flat from 1926 to 1939.

The townhouse where the English poet created some of his most influential work has been preserved in tribute.

More than a million titles fill the labyrinthine shelves of this prestigious private library.

Never actually a tree at all, this spot was the site of London's public hangings for nearly 600 years.

This legendary stone is of unknown origin, and throughout history has been a literal touchstone for British leaders.

A mysterious pair of mice eating a piece of cheese is London's smallest public sculpture.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

This hidden green space is the city's second largest conservatory.