This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

Medicinal spa created from the mineral-rich runoff of a geothermal power plant

At the foot of a waterfall lies a peaceful swimming lagoon and evidence of over 60,000 years of human habitation.

These fly sculptures are scattered around the city and represent the patron saint of Girona.

A 4,000-year-old burial site hides behind a roadside Burger King.

A haunting monument dedicated to the Royal Naval Air Service and the Fleet Air Arm.

This haunting sculpture was created as a statement on the mechanized warfare of the First World War.

A monolithic monument in Greater London.

Sculptor Antony Gormley used chaos theory and fractal growth to design his tallest creation.

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

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

The remains of a historic football stadium that once hosted 50,000 spectators.

An abandoned tank sits in an empty London lot as a symbolic middle finger to local city planners.

Rebuilt remains of a temple to Roman god Mithras.

A 2000-year-old Roman amphitheater lies just below Guildhall Yard.

England's most famous front door has an accidental doppelganger.

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

Installed at a chaotic intersection, this gave London traffic cops a place to hang their heavy woolen coats.

It is still illegal to "quarrel" at this unlikely urban oasis built on top of an electrical substation.

An eerie reminder to the horrors of World War II.

This statue of an eagle taking flight welcomes visitors to Langkawi.

In one of the smallest countries in the world stands an original Salvador Dalí sculpture.

Legend says these colorful, invasive residents are the descendants of birds released by Jimi Hendrix.