Places solarconstant Wants to Go

America's only nuclear missile silo open to the public.

A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.

Advice-columnist's bell tower, paid for with pennies.

World's strongest whirlpool.

Tower that was a frequent stop on the travels of King James I.

Intensely colorful calcite pools in Southern China.

Eternal flame said to be a Hindu Goddesses fiery tounge.

An underground city of salt.

This peculiar lake of pitch is so thick and viscous that one can walk on its surface.

One of the most extreme deserts in the world, these snow-free valleys harbor life, despite the hostile environment.

Earth's greatest purely vertical drop at 4,101 feet.

Deep scars on the earth left by the Ice Age.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

An extraordinary mechanical calculator designed by the mathematician and philosopher Gottfried Leibniz.

An arsenic-filled pool in the Grand Canyon takes on the appearance of a giant, overflowing pumpkin.

Mother Nature outdoes herself with this stunningly beautiful set of caves carved into marble.

A picture-perfect town, perfect for blowing up.

The 953 windows undoubtedly make this the world's most beautiful screened porch.