You'll find rocket launchers, not rollercoasters, at Russia's “military Disneyland.”

Once frequented by heavyweights of the Russian arts scene, this café is stuck in the 1800s.

Dark, eerie exhibits make for a surreal exploration of the subconscious.

Siberian ghost town built by gulag prisoners.

Immortal combat in a Moscow museum.

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

This hydrochronometer was invented by a Dominican monk and is a prime feature in this garden.

Hidden within this iconic mountain are a set of World War II bunkers once used by German forces.

Roman-era ships unearthed...

The martyr's wax-enhanced skeletal remains lie preserved in a glass case in the Santa Maria della Vittoria in Rome.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

The underground sanctuary of a mysterious ancient cult.

Architectureal fantasy quarter of Rome.

The bridge continues the legacy of President Franklin D. Roosevelt's New Deal policy.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

This strange seaside tower got its name from a wealthy eccentric who would hide coins among its stones.

A library of rare occult books in Los Angeles.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

A New York garbage depot holds a secret collection of weird and wonderful refuse.

Banksy gives themself artistic license with this piece of London street art.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.