A rare water-powered funicular, it uses a huge tank of water and gravity to do its work.

In this truly magical place, rent hasn't been raised since the year 1520.

A German apartment building hosting as many trees as human occupants.

A striking 12th-century-style castle built on the edge of a cliff.

Powerline dead since the 1980s despite appearances.

World's only telecommunication tower with a wooden pinnacle.

Germany's last remaining Lenin statue has become a lightning rod of debate about the country's divided past.

This monument to those fallen in the World Wars is accompanied by a U-boat that Germany bought for a Deutsche Mark.

A museum dedicated to the silliest fruit.

This elderly couple's hand-picked collection of rare gems is one of the finest in all of Iceland.

One woman's lifelong collection is on display in this unassuming house on an Icelandic fjord.

This modern monument to pagan belief looks like it was transported straight from ancient times.

Staves, storm-calling, and of course, necropants.

This sword isn't waiting for a king to pull it out. It was placed there by a saint.

A preserved college lock-up that recalls a clubhouse approach to discipline.

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

An enormous concrete structure built over a nuclear crater.

A memorial to the murdered Jews of Kaunas.

Launch site for nuclear war against Western Europe.

This micro-nation may be some sort of prank, but its constitution sure seems official.

Once known throughout Europe, this tiny and unusually progressive 18th century micro-nation within Lithuania now lies in ruins.

This 19th century granite fortification is one of the most well preserved forts in New England.

Remains of the old fortification along the Western border of the USSR, now an elaborate defense museum.

The underground hideout of a Japanese soldier for whom World War II ended in 1972.