One of the world's tallest statues is also one of its most hated.

Dozens of padlock-trees along the Moscow River.

The tallest hotel in Europe.

A sculpture park of the tossed aside relics of the USSR, from Stalin to a massive Soviet emblem.

Thirteen sculptures in central Moscow graphically depicting vices of the modern world.

Museum celebrating the achievements of the Soviet space program.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

Moscow's other, lesser known kremlin is a fairytale-like cultural complex modeled after Old Russia.

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

A former imperial sea-fortress and Soviet prison.

This medieval Estonian tower provides access to a series of tunnels that have been home to soldiers, punks, and fine art.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

Disused seaplane hangar gets a second life as the jaw-dropping home of Estonia's museum of maritime history.

Tower with a double-helix spiral, adorned with letters of the Georgian alphabet.

Monks in the empyreal Alazani River valley have preserved their 1,000-year-old winemaking tradition.

A gleaming white and undulating tower marks the border between Georgia and Turkey.

Fortified homes of highland warriors that are still in use today.

These Stalin-era industrial 'death traps' hang lifeless above the city

Small church on top of a huge rock column.

Take respite inside this jaw-dropping church while climbing the volcano where Georgia's Prometheus was once chained.

The first skyscraper to include a Ferris wheel built into the facade.

Rock-hewn monastery complex with hundreds of cave structures tucked away into the mountainside.

Ancient rock-hewn town that witnessed key events of Georgian history.

Underground monastery and fortress.