A museum dedicated to the alleged Roswell Incident.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

This cheery fruit farmer welcomes visitors to a classic roadside emporium.

High in the Sacramento Mountains, a facility dedicated to studying the sun.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

Home of the International Space Hall of Fame.

This is one really big nut.

A preserved oak tree about 3,500 years old found in Riga, Latvia.

A black cat protests the City Guild in Riga's Old Town.

Flamboyant architecture from the turn of 20th century.

The oldest housing complex in Riga is a mini timeline of architectural trends.

3,000 market stands in five former Zeppelin hangars.

An abstract monument to a symphonic composer.

This irregularly shaped sea fortress has defended not one but three different sovereign states.

This endearingly discomfited urinating statue commemorates the sneaky pees had by us all.

Architecturally stunning library serves as the hub of Finnish scholarly life and culture.

A subterranean house of worship carved right out of the bedrock.

"There's nothing there," and other lies the KGB told us.

A rare cluster of alien-like plants grows along a dusty highway.

The most powerful waterfall in all of Europe.

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

A black sand beach where glacial fragments wash ashore and look like sparkling diamonds.

Outlaws, hot springs, and tragedy have all left their mark on this ancient road in the Icelandic highlands.

Three columns of volcanic rock shoot out of the ocean.