The largest brick bridge in the world.

This ancient oak tree plays matchmaker for singles willing to branch out from the usual dating scene.

Remarkably preserved body discovered in a peat bog.

Nearly 40 miles and 1,000 years of limestone mines under Denmark.

This huge industrial sculpture looks like a UFO and a factory had a baby.

The decaying remains of a 1960s mechanical wonderland that never officially closed.

Denmark's famous pseudo-hill.

Possibly the smallest church in the world floats in the middle of a pond.

A lonely medieval monastery on an uninhabited island.

Life in this isolated, hilltop lighthouse was lonely, but it sure was lovely.

One of the smallest towns in the United States.

Named for the DeFoe novel inspired by a stranded sailor, this island is known for its rare plants and extreme beauty.

Historic church where a number of Shakespeare's actors are buried.

A small island abbey is the final resting place of many medieval Scottish monarchs, including the real Macbeth.

Old Danish castle immortalized in Shakespeare's Hamlet.

This ruin in a suburban park may be the place where Shakespeare's "A Midsummer Night's Dream" was first performed.

Two plaques commemorate the site of Shakespeare's first theatre.

A local student's chance encounter with Keith Haring led to the creation of one of Europe's largest murals.

One of Mexico's few murals dedicated to an indigenous language.

This ancient cave is home to a museum, bar, and is filled with fluorescent minerals.

Iron Age "bog person" preserved for over 2,300 years.

A tiny island is connected to the mainland by a private railway that residents travel in their own personal wagons.

The world's first and only three-segment bascule bridge folds up into the shape of a capital "N" to let boat traffic through.

Abandoned railroad tunnel is home to a colony of three million Mexican free-tail bats.