A vertical tube that allows you to see what's going on underneath the Antarctic sea ice.

The Ryerss mansion in Burholme Park now houses a community library and a museum filled with a trove of oddities from around the world.

A real-life homage to the Rachel McAdams and Will Ferrell's fictional Eurovision musical duo.

A rare view of a preserved Victorian science museum.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

This sprawling concrete suburb of Kraków was designed by the Soviet Union as the model proletarian city.

A giant interactive periodic table with real samples of the elements.

Monument to a suicide protesting the Soviet invasion.

The risqué mixed-media sculptures are supposedly a metaphor for Czech politics.

A steampunk-styled three-floor factory churning out art, activism, and electronic beats.

Countless grotesque faces stare out from this eerie Prague art wall.

The Habsburgs' royal collections of art and wonders.

An exquisite Baroque church in Vienna's old town.

Dine amidst exotic plants at this former royal greenhouse.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

Handsomely crafted representations of our round planet.

Budapest's Communist-era statues, banished to the suburbs.

This wooden home was built in West Virginia by a Scottish immigrant before being moved to an Israeli winery.

One of only three fountains created by the iconic architect Friedensreich Hundertwasser.

Squeezing inside this deep, narrow canyon reveals a festival of desert colors.

This amazing ancient cave was kept secret for seven years to protect it from the public.

A 2,000-year-old wine press hidden in an overlooked park in Tel Aviv.