Every equinox this Maya pyramid puts on a spooky ancient light show.

Ancient serpentine sacrifice holder that has stood the test of time.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

A Lycian city of the dead carved into the hillside of Southern Turkey, complete with startlingly human touches.

These tombs were built into the side of a mountain so that ancient angels could reach the dead.

A marvel of Byzantine engineering under the streets of Istanbul.

This Norwegian satellite station provides ground services to more satellites than any other facility in the world.

The great polar explorer is remembered in this far northern town, where he embarked on his final expedition.

This functioning parish church is also the site of many concert performances due to its wonderful acoustics.

The world's northernmost aquarium looks like it has fallen over.

One of Amsterdam's narrowest houses is located right across the canal from its widest.

The world's largest collection of ships in bottles.

Amsterdam's former hotspot for public executions and dissections.

Three connected pink triangles memorialize persecuted gays and lesbians throughout history.

The Bloemen Route, or “Flower Route”, stretches 25 miles through prime Dutch tulip country as a result of “tulip mania,” the world’s first economic bubble.

The history and future of cannabis.

Inspired by "The Starry Night" this Dutch bike path turns into a glowing work of art each night.

Northern Ireland's Brobdingnagian stepping stones.

Ireland's most remarkable collection of these curious cone-shaped houses is worth the buzz.

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

Amidst the bustling streets of Dublin, there is a hushed garden that is dedicated to "All those who gave their lives in the cause of Irish Freedom."

This single room has survived the centuries with almost no deterioration.

One of Ireland's most infamous prisons for rebels including men, women and children.