The architect of this fanciful complex called it an "oasis for humanity and nature in a sea of rational houses."

This painted Lego bridge is the product of over a century of locomotive history.

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

Remnants of an exploded schooner and wrecked submarines form a breakwater.

A German apartment building hosting as many trees as human occupants.

When German-Iraqi relations broke down, this embassy was vacated post haste.

A tiny 1857 chapel sits on top of a secluded, forested hill.

Picturesque and haunting, these 160-year-old stone ruins on top of a bluff are the only remains of a settler's legacy.

Built by an accountant with a dream of running a grand resort, this estate has sat vacant for over half a century.

Prayers and messages of hope decorate the ceramic tiles of this pavilion.

The bugs crawling down the front of this office building are almost as big as a '68 VW Beetle.

Downtown Minneapolis mixed art and function by turning some of their sewer covers into works of art.

The remains of a hospital ravaged by fire, once a progressive place of innovations for disabled children.

These whimsical works of art tell the story of the city's past and present.

A home built and settled by a refugee of the Salem Witch Trials.

A small plaque promises cold, hard cash in exchange for work by the famous pop artist.

This miniature museum is home to a vast array of insects.

This historic Victorian mansion is allegedly so haunted that a signed waiver is required to enter.

The home of an antique carousel still in operation.

This building is more than 250 years old and was built in one of the first towns settled in Massachusetts.

A small obelisk commemorates the launch site of the world's first liquid-fueled rocket.

One of the first amphibian migration tunnels in the United States encourages a tradition that has inspired Amherst residents for decades.

This American Sycamore was grown from seeds that accompanied the Apollo 14 mission in 1971.

The site of the Andover Witch Hunts, which ended with more witch accusations and arrests than Salem.