Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

A statue in the center of Dublin dedicated to one of their favorite sons of rock & roll.

More than 5,000 artifacts donated by the people of the city, plus a room entirely devoted to the band U2.

Experience what life was like in Ireland during the Viking and medieval ages.

This unassuming alcove in London’s famous Tower Bridge once served to capture, store, and display dead bodies from the River Thames.

An architectural oddity hides in plain sight on this iconic London bridge.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

An unusual ode to the late Irish playwright, complete with a squiggly bust and coffin-shaped bench.

Installed at a chaotic intersection, this gave London traffic cops a place to hang their heavy woolen coats.

This ancient oak plays host to carvings of magical elves, gnomes, witches, and other creatures prominent in local folklore.

This fountain of a little boy that spits on passersby at erratic intervals is a town icon.

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

This man-made mound monument was built out of soil from all across the Polish empire.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

Real bones which are said to have belonged to a Polish dragon.

Beneath Kraków Old Town's main square lies a hologram-filled medieval market vampire graveyard wonderland.

Known as the Sistine Chapel of Egypt, this tomb houses some of the most well-preserved paintings in Egypt.

These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.

Partially collapsed lava tube and cave system complete with concert hall, underground pond, and unique albino crabs.

This beautifully verdant lagoon is tucked below a massive volcano in a crater atop a black pebble beach.

Visit a surreal landscape so otherworldly NASA actually used it to train the Apollo 17 crew.

Inside houses a vast collection of military aircraft and missiles spanning the ages.