One of the largest caverns in the world has a maw large enough to stack cathedrals in.

Holy Hindu shrine in an enormous, monkey-filled limestone cavern.

Half-drowned wooden stumps and stone blocks are all that remain of a Victorian landing that was destroyed by storms.

One fisherman has used his love of pebbles and shore to create a crazy garden of rocky art.

The rotting skeleton of a shoreside fun fair that was destroyed by fire and storms still haunts the Brighton ocean view.

Decrepit Victorian public lift is a white-knuckle ride.

Soldiers carved these regimental badges into the chalk hills in remembrance of those who died in World War I.

This silent sentry in the crypt below a large Gothic cathedral is often knee-deep in water.

A half-mile-long stretch of medieval forts built after a devastating pirate attack persists amid the modern port city.

Hauled from the water's depths, Henry VIII's flagship is preserved in this capsule-shaped museum.

A Nesting Doll of Churches.

This hidden Art Nouveau courtyard is an opulent feast for the eyes.

An unusual "skull with ears" sits in the crypt of this small church tucked away at the end of a narrow alley.

Every day is like Christmas on this street where the traditional Neapolitan nativity scene comes to life.

This former fascist summer camp was abandoned for decades.

A sunken idol welcomes parishioners to Davy Jones' Locker.

This cathedral hides a sculpted dog that determines your fate and an unexploded shell from World War II.

Massive galleon from a box-office bomb docked in Genoa.

A disused quarry turned lake in the middle of a residential district.

Frozen in Norway, vended in Singapore.

The highest pedestrian bridge in Singapore looks like a series of undulating waves rising between two public parks.

The busy transport hub is home to the tallest airport slide in the world.

Singapore's landscaping project is home to 18 incredible Supertrees.

Two cannon-like cranes were installed on top of the bank building to fend off bad feng shui.