Stone slabs along the coast warn of Japan's tsunami-ravaged past, often marking the highest point of a wave's reach.

With over 12,000 different species of plants, this botanical garden is Japan's oldest and most diverse.

The Victorian-era greenhouse is stuffed with tropical plants, and open 365 days a year.

This museum holds a fully-functional replica of the "Turtle," the first American submarine ever built.

This long line of cement defensive wedges is named after the famous chocolate bar for obvious reasons.

The randomness of this wall of lava lamps helps encrypt up to 10 percent of the internet.

The world's oldest continuously operating airport was founded by the Wright Brothers.

The world's only flying boat museum honors a small Irish village that sent 20th-century aviation to new heights.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

This quiet park's strange sedimentary spires were named after Kodak's color film.

The only diamond mine in the world where you can keep what you find.

The oldest surviving botanic garden in the United States.

Canada's subterranean Cold War museum has doubled as a movie set.

Marvel at this turn-of-the-century masterpiece that has been turned into a rather stately supermarket.

Funded by John D. Rockefeller, this is one of the earliest, and most beautiful, shopping arcades in America.

The only depiction of Abraham Lincoln holding a weapon, and the names of all 9,000 Cuyahoga veterans of the Civil War.

This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.

The world's largest and most outstanding marl lake regularly changes color.

A picture-perfect town, perfect for blowing up.

A collection of the best toys ever made, The National Toy Hall of Fame is filled with kids, fun, and for some reason, a bird preserve.

A collection of unique outdoor sculptures surounded by the beauty of nature.

When the Austin Dam failed it destroyed much of Austin...and then it failed again.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.