A glimpse into the festive and private lives of medieval Europe.

This statue is dedicated to the animal cosmonauts that perished during space flight experiments.

An abandoned mansion is now a haven for urban explorers.

An artful memorial to 4,000 fateful oranges.

The Grand Mall in Varna hosts one of the biggest collections of Soviet-era paraphernalia in Bulgaria.

This interactive sculpture allows visitors to leave a message in case a friend passes by.

This large sculpture of white plates and forms is actually a huge sound amplifier.

These two strange cones are actually a system of old nautical navigation beacons.

This mosque turned crypt is an amazing display of Persian-Islamic architecture.

This heavily worn bas-relief was once an honored fertility symbol.

The oldest surviving wooden bridge over Rhine lets travelers cross easily from Switzerland to Liechtensten.

These natural cliffs look like they are a part of an old castle complex.

The most sacred Jewish shrine in Iran and a fine example of restoration works gone wrong.

Nicolas Schöffer's massive interactive sculpture was assembled in 1961 and brought back online in 2016.

Inside this small chapel tucked away in the forest is one of the most well-preserved Danse Macabre frescos.

Just across from the "Last Supper" painting is the famous painter's vineyard, a gift received for creating the masterpiece.

The final resting place of more than 200,000 people, this is one of the largest cemeteries in Europe.

See tools once used for processing this coffee-substitute plant before sampling its flavor firsthand.

Mysterious heaps of stones dot these otherworldly woods.

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

Only a fragment of this 15th-century Dance of Death survives today.

This behemoth bovine guards an Estonian town and is a memorial to the lost species.

Once a year, local students "clean" this statue with a champagne shower.

It's rumored this unique Baltic beacon was designed by Gustave Eiffel himself.