A labyrinth hides in plain sight at each of the city's 270 Tube stations.

London's old-school healing garden.

Mountain where Jesus was first tempted by the Devil.

This Scottish museum is the only one in the world to focus not on one religion but all of them.

This gnarled old tree supposedly sprouted from seeds kept in the pocket of a 16th-century Spanish sailor.

A peace symbol in Northern Ireland is among the world's largest hedge mazes.

The atmospheric road was never meant to be so creepy.

Scotland's oldest purpose-built concert hall houses an incredible collection of ornate, centuries-old keyboards.

This enchanting hill is home to fairy lore and a sinister local mystery.

The 16th-century church has the only stained glass windows that survived the Scottish Reformation intact.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

The grand, column-fronted, sculpture-adorned home of the ambitious digital library.

In this century-old literary safehouse, print is alive and well.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

Olfactory delights in San Francisco's Botanical Gardens.

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

The only theatre in the world constructed specifically for sound movement.

An artsy hidden staircase leads to breathtaking views of San Francisco.

A huge musical instrument played by the ocean.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

A library of rare occult books in Los Angeles.

Obscure and obsolete publications are given new life as works of art.

The world's largest collection of materials relating to lesbian history is housed in a Brooklyn townhouse.

Nature and beauty amidst pollution and industrial wreckage.