The oldest continually operating golf course in the United States.

Giant telescope mirrors built in a spinning furnace under a college football stadium.

A cabinet of curious mathematical models and old calculators.

An emerald-green grotto just a short trip from Austin.

A large spinning bath of liquid mercury, used to probe the early universe.

The most powerful laboratory radiation source in the world pulses with 1,000 times the electricity of a lightning bolt.

Two creeks flow out of either end of this canyon in opposite directions.

An idle pastime becomes a record holder in Boys Town, Nebraska.

The Magical World of George Phar Legler.

Thousands of artifacts relating to human sexuality, including the world's largest sex bike.

This institution collects the history of burlesque dancing with a titillating collection of ephemera and pasties.

The deepest hole drilled in the name of science, where evidence of Precambrian life was found.

A dormant lightning machine equal to all the power in Russia.

A Marxist summer camp full of fantastical statues lies tucked away and forgotten in the forests of Moscow.

A remote forest of stone pillars along the Lena river.

The world's second-largest excavated hole.

Nightmarish example of the unintended consequences of weapons testing.

It's hard to believe the dizzying patterns covering this abandoned mine are completely natural.

An art museum inside an active factory.

A small and surprising passageway in Saint Petersburg devoted to the Beatles.

An incredibly random collection of wax figures is displayed in a shopping center walkway.

A city block packed with whimsical sculptures that seem to be plucked from a tiled fantasy world.

The oldest museum in Russia is home to a fascinating collection of nearly two million anthropological artifacts and anatomical curiosities.

A museum dedicated to controversial Russian pianist Alexander Scriabin.