Twice a year, visitors can tour the desolate site that birthed the Atomic Age.

The world's largest collection of the world's largest objects is in one small Illinois town.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

A gorgeous medieval library where the books are kept in chains.

Artist Diego Morlin's war between the natural and human worlds is a wanderer's delight.

A fake medieval village in the middle of Turin.

This picturesque Umbrian city has a subterranean side that has long remained hidden.

Smallest house in Toronto sits on a lot meant to be just wide enough for cars to drive through.

Willy Wonka would love this weird half-a-home.

Lost subway station nestled beneath Toronto's busy commuter line.

A well-preserved network of cavernous tunnels have spent silent centuries removing Toronto's waste.

A book collector's dream, this Toronto bookstore has the world's first "Biblio-Mat," a random book vending machine.

The fairy tale castle of the "fairy-tale king."

The sign at the garden gate reads: "These Plants Can Kill."

An exquisite tunnel of cascading flowers.

The origin of the Nixon tapes is rooted in technological incompetence as much as secrecy.

This steamer is known as "The ship that built Cleveland."

A quarter-scale locomotive wonderland built by one man and his family.

Housed in the university planetarium, the thousand-strong collection of tiny towelettes includes a used one from the hosts of Car Talk.

Halloween spirit is alive and well in this small town, where residents race motorized caskets in a yearly tradition.