An off-the-beaten-path place to literally hang beneath Milwaukee's Holton Street Bridge.

Vikings and Evangelicals have both had a hand in this replica medieval church.

These molds for fiberglass statues have formed an eerie, accidental sculpture park.

"World's largest scrap metal sculpture" stands in an outdoor sculpture garden in the middle of Wisconsin.

These Great Lakes sea caves accessible by boat in the summer turn into temples of ice reachable by foot in the winter.

A bizarre house filled with an astounding array of collections.

Before it was abandoned and left to rust alongside the road, this riverboat starred in a John Wayne movie.

Ring the bell to enter a bar that looks equal parts museum and old curiosity shop.

An exquisite collection of fairytale conveyances that puts most car museums to shame.

Dead weights honor the dead of Portugal's fishing industry.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

This small chapel is built of human bones and decorated with a golden skeleton.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

Men in rubber-soled boots serve as your "brakes" on this toboggan ride Hemingway described as "exhilarating."

A sturdy relic of Britain's once crucial gunpowder industry is now a haunting Cornish ruin.

This Italian-style temple replica has been threatening to fall off the Irish coast for hundreds of years.

One of the oldest libraries in England, and one of the last of the great medieval chained collections.

Although it appears ancient and mysterious, the quirky folly was actually built 200 years ago by an eccentric estate owner.

The only fixed chain and post trail in Scotland snakes its way along the base of a towering seaside cliff.

The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

Large-scale contemporary artworks tower over fields and lurk in forests around a Jacobean manor house.