Once the longest swing bridge in Europe.

The Suurhusen church tower in Germany leans over farther than the famous Leaning Tower of Pisa.

This monumental work of art symbolizes the coming together of a previously divided city.

An eerie, derelict amusement park in Berlin.

This TV tower once secretly housed a GDR intelligence team.

This incredible stone temple is a monument to death, victory, and fantasy architecture.

Ruins of a German castle on top of a towering stone pillar.

An ornate century-old elevator still connects the two halves of Bad Schandau.

Thirty creepy ghosts now inhabit this decaying 14th-century church.

The soulless eyes of 82 bronze children stare on forever in remembrance of a horrifying World War II massacre.

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

Tall columns of volcanic basalt make up this improbable-seeming rock formation.

This towering statue of Jesus provided internet to the surrounding area.

This hilltop ruin is of the hundreds of stone columns built in tribute to the first German chancellor.

Built to transport German U-boats through the never-completed Masurian Canal, the locks near this Polish village are now home to a rope course.

This lakeside bunker complex in Mamerki, Poland, housed the Supreme Military Command of Nazi Germany during World War II.

This Estonian watchtower looks like a big tree with two giant bird nests on it, complete with a "golden egg."

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

A statue of the Soviet leader still stands in a quiet corner of Estonia’s most Russian city.

The oldest continuously operating pharmacy in Europe.

Explore 150 years of Estonian rail history in a terminal once built for Tsar Nicholas II.

One of the oldest lighthouses in the world has been in continuous use since it was first built in 1531.

Rent a barrel for a personal view of where the Baltic Sea meets the Gulf of Riga.

Built to ward off Napoleon's army, this city-sized abandoned Russian fort is now perfect for urban exploration.