Places scienceballer Wants to Go

This beautifully designed star-shaped fort was the premier defense system of the late 1500s.

Dr. Strangelove-esque tours reveal the inside a bunker once reserved for Stalin himself.

A top secret Cold War bunker hidden beneath a Latvian spa facility is now open for tours.

One of the world's largest tanks mimics the experience of watching rare whale sharks, giant rays, and deep sea creatures from the ocean floor.

Huge concrete structures designed as an early warning system for Britain to detect enemy aircraft.

This Latvian shot factory is still used twice a year to manufacture bullets the old-fashioned way.

An icy lake tucked among jaw-dropping alpine panoramas.

This little-known, 35,000-specimen collection in Greece is a lepidopterist's dream.

Europe's only museum solely dedicated to the history of whaling still has a fully-functioning whaling ship.

A little church on a tiny island looks like something from a fairy tale.

The library's graceful rotunda is like a bibliophile's temple.

A walkable map of the world, made from soil and stone by one man.

Nearly 40 miles and 1,000 years of limestone mines under Denmark.