A daring D-Day assault by U.S. Army Rangers is commemorated atop the high cliffs of this strategic point.

A subterranean shelter remains intact under a busy Paris railway station.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

No need to strap in for a "ride" on this walkable roller coaster.

Crouch down, stretch tall, and be sure to flail your legs to pay homage to the Monty Python classic.

A museum celebrating the Canadian forces that liberated Belgium from the Nazis replete with battlefield miniatures and multiple Gardens.

The site where one of the most famous poems of World War I was composed is preserved to honor the legacy of the work.

In an area where the remnants of WWI are discovered on a regular basis this preserved frontline trench may be the most amazing.

A moving memorial to the fallen and missing from WWI trenches.

A rare example of World War I trenches from the British front.

This three-chambered cave is the only protected natural bat hibernaculum in Quebec.