These abandoned vessels are destined to be reclaimed by the forest.

First point in the Struve Geodetic Arc, a 19th century undertaking to measure the Earth's size and shape.

A series of concentric circles represented a bold new experiment in socialist urban planning, and it notoriously difficult to get around.

Visitors can sit and study the board with this Estonian chess legend and International Grandmaster.

This set of concrete chambers resonates according to different notes of octaves.

This abandoned office building is a lasting example of Soviet-era architecture.

This bone-filled cave got its name after they found 140 bear skeletons inside.

The true meaning behind this sculpture remains unknown.

The silly symbol for an underground protest group is now scattered around the city.

Countless stories attempt to explain Poland's mysterious J-shaped trees.

The largest manmade caves in Europe now function as a motorbike club's headquarters.

Macabre astrological automaton clock dating to the late 1400s.

The rusted creatures wait to be discovered in Prague's botanical garden.

What looks like a suicide in progress is actually a statue of Sigmund Freud.

The largest bottled beer collection in the world holds over 22,000 unique beer bottles.

This fortress dates back to the 6th century and is also the site of a controversial abandoned restoration project.

The figure atop this globe is from a Serbian play about a merchant's travels around the world.

Operating continuously since 1903, this "milestone" facility transformed the regional economy.

Tucked in an urban forest, this restaurant specializes in homemade, healing rakijas.

Ride in 1960s style on the private luxury train Marshal Josip Tito used to travel around Yugoslavia.

A Serbian church lit by chandeliers made of weapons.

Padlocks cover this rickety footbridge with love.

This hill is known for its connection to the occult in Slavic tradition.

Oriental bazaar in the heart of Sarajevo.