Legends surround an ancient tree trunk riddled with nails for good luck.

Hungarian mummies in beautiful painted coffins.

A fake Transylvanian castle houses a cathedral of antlers.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

Museum dedicated to the terror regimes of Hungary.

Electrical curiosity museum housed in an old transformer station.

Possibly the world's largest hourglass only needs to be reset every New Year's Eve.

Central Europe's largest collection of mini-bottles is on display at this museum devoted to a bitter Hungarian liquor.

A random tree outside a Budapest hotel has become a DIY shrine to the late singer.

This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.

Once the home of a hermetic monk, this cave now houses a small church.

This insurance company building reminds customers that witches, bears, and gnomes are out there, best be insured.

A decommissioned submarine base makes a great space for graffiti art.

These crumbling Latvian forts make for some haunting seaside ruins.

A top secret Cold War bunker hidden beneath a Latvian spa facility is now open for tours.

An old hill fort covered in over 100,000 crosses is a symbol of Lithuanian nationalism and beliefs.

A memorial to the murdered Jews of Kaunas.

Lithuania's outdoor sculpture trail of wooden folk art.

Sculpture garden of religious statues made it through Soviet rule.

Guests become prisoners on a visit to Latvian prison.

Spend the night in 1920s Latvia in this historic recreation and movie set.

This small Estonian hill is covered in hand-made twig crosses that are said to bring good luck.

Legend has it that not even Stalin could pull down the 2015 European Tree of the Year.